| 释义 |
spider
spi·der S0637200 (spī′dər)n.1. Any of numerous arachnids of the order Araneae, having a body divided into a cephalothorax and an abdomen, eight legs, two chelicerae that bear venom glands, and two or more spinnerets that produce the silk used to make nests, cocoons, or webs for trapping insects.2. One that resembles a spider, as in appearance, character, or movement.3. A program that automatically retrieves webpages and follows the links on them to retrieve more webpages. Spiders are used by search engines to retrieve publicly accessible webpages for indexing, and they can also be used to check for links to webpages that no longer exist. Also called crawler, search bot.4. New England, Upper Northern, & South Atlantic US See frying pan.5. A trivet.
[Middle English spither, from Old English spīthra; see (s)pen- in Indo-European roots.]spider (ˈspaɪdə) n1. (Animals) any predatory silk-producing arachnid of the order Araneae, having four pairs of legs and a rounded unsegmented body consisting of abdomen and cephalothorax. See also wolf spider, trap-door spider, tarantula, black widow2. (Animals) any of various similar or related arachnids3. (Mechanical Engineering) a hub fitted with radiating spokes or arms that serve to transmit power or support a load4. (Agriculture) agriculture an instrument used with a cultivator to pulverize soil5. (Tools) any implement or tool having the shape of a spider6. (Nautical Terms) nautical a metal frame fitted at the base of a mast to which halyards are tied when not in use7. (Agriculture) any part of a machine having a number of radiating spokes, tines, or arms8. (Automotive Engineering) Also called: octopus Brit a cluster of elastic straps fastened at a central point and used to hold a load on a car rack, motorcycle, etc9. (Billiards & Snooker) billiards snooker a rest having long legs, used to raise the cue above the level of the height of the ball10. (Angling) angling an artificial fly tied with a hackle and no wings, perhaps originally thought to imitate a spider11. (Telecommunications) computing a computer program that is capable of performing sophisticated recursive searches on the internet12. (Automotive Engineering) short for spider phaeton[Old English spīthra; related to Danish spinder, German Spinne; see spin]spi•der (ˈspaɪ dər)
n. 1. any of numerous predatory arachnids of the order Araneae, having a body divided into two parts, a cephalothorax bearing eight legs, and an abdomen with silk-secreting spinnerets: their webs serve as nests and as traps for prey. 2. (loosely) any of various other arachnids resembling these. 3. any of various devices with leglike extensions suggestive of a spider, as a tripod or trivet. 4. a frying pan, orig. one with legs for cooking on a hearth. 5. a machine part having a number of radiating spokes or arms. 6. a computer program that automatically retrieves Web pages for use by search engines. [before 1150; Middle English spithre, Old English spīthra, akin to spinnan to spin; compare Dan spinder] spider- cobweb - A single thread spun by a spider.
- arain - Another word for spider.
- lobster - Comes from Old English loppestre, "spider," because there is some resemblance.
- insect, spider, crustacean - One major difference between insects, spiders, and crustaceans is the antennae; most insects have one pair, spiders have none, and crustaceans have two pairs.
spiderA program that searches the Internet for previously unknown web pages or other publicly accessible documents so that they can be included in the databases of Internet search engines. Also known as a crawler or webcrawler.Thesaurus| Noun | 1. |  spider - predatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for preyarachnid, arachnoid - air-breathing arthropods characterized by simple eyes and four pairs of legsAraneae, Araneida, order Araneae, order Araneida - spidersorb-weaving spider - a spider that spins a circular (or near circular) webArgiope aurantia, black and gold garden spider - a widely distributed North American garden spiderAraneus cavaticus, barn spider - an orange and tan spider with darkly banded legs that spins an orb web daily; "the barn spider was made famous in E. B. White's book `Charlotte's Web'"Aranea diademata, garden spider - a spider common in European gardenscomb-footed spider, theridiid - spider having a comb-like row of bristles on each hind footblack widow, Latrodectus mactans - venomous New World spider; the female is black with an hourglass-shaped red mark on the underside of the abdomentarantula - large hairy tropical spider with fangs that can inflict painful but not highly venomous biteshunting spider, wolf spider - ground spider that hunts its prey instead of using a webtrap-door spider - American spider that constructs a silk-lined nest with a hinged lid | | 2. | spider - a computer program that prowls the internet looking for publicly accessible resources that can be added to a database; the database can then be searched with a search enginewanderercomputer program, computer programme, programme, program - (computer science) a sequence of instructions that a computer can interpret and execute; "the program required several hundred lines of code" | | 3. | spider - a skillet made of cast ironfrying pan, frypan, skillet - a pan used for frying foods |
spider nounRelated words
adjective arachnoid
fear arachnophobiaSpiders and other arachnids bird spider, black widow, book scorpion, cardinal spider, cheese mite, chigger, chigoe, or (U.S. & Canad.) redbug, chigoe, chigger, jigger, or sand flea, false scorpion, funnel-web, harvestman or (U.S. & Canad.) daddy-longlegs, house spider, itch mite, jumping spider, katipo, mite, money spider, redback spider, spider, spider mite, tarantula, tick, trap-door spider, vinegarroon, water spider, whip scorpion, wolf spider or hunting spiderTranslationsspider (ˈspaidə) noun a kind of small creature with eight legs and no wings, which spins a web. 蜘蛛 蜘蛛spider
barking spiderslang That which is (humorously) said to be the cause of a fart. Come on, man, control the barking spider, will you? It smells horrible in here now.See also: bark, spidersee pink spidersTo hallucinate or see things incorrectly due to acute alcohol intoxication or withdrawal. My dad said that he saw pink spiders for a while after he gave up drinking. You're going to start seeing pink spiders if you don't stop drinking so much.See also: pink, see, spiderseeing pink elephants and seeing pink spiders; Seeing snakesintoxicated; recovering from a drinking bout; having the delirium tremens. When I got to the point of seeing pink elephants, I knew that something had to be done. The old one who's shaking—he's probably seeing snakes.See also: elephant, pink, seeingbarking spider and trumpet spider n. the imaginary source of the sound of an audible release of intestinal gas. (With reference to the image of a anus.) Heidi, do you know anything about the trumpet spider I keep hearing? Although Dr. Waddlington-Stowe had never heard “barking spider” with reference to the affected part, he caught the connection immediately. See also: bark, spidertrumpet spider verbSee barking spiderSee also: spider, trumpetpink elephants and pink spiders1. n. the delirium tremens. He was shaking something awful from the pink spiders. 2. n. hallucinatory creatures seen during the delirium tremens. (see also seeing pink elephants.) He said pink elephants were trying to kill him. He’s really drunk. See also: elephant, pinkpink spiders verbSee pink elephantsSee also: pink, spiderseeing pink elephants and seeing pink spiders and seeing snakes tv. alcohol intoxicated; recovering from a drinking bout; having the delirium tremens. When I got to the point of seeing pink elephants, I knew that something had to be done. He’s screaming something about seeing pink spiders, and he wants a drink. See also: elephant, pink, seeingseeing pink spiders verbSee seeing pink elephantsSee also: pink, seeing, spiderspider
spider, organism, mostly terrestrial, of the class Arachnida, order Araneae, with four pairs of legs and a two-part body consisting of a cephalothorax, or prosoma, and an unsegmented abdomen, or opisthosoma. The cephalothorax is covered by a shield, or carapace, and bears eight simple eyes. On the underside of the head (the cephalic part of the cephalothorax) are two pairs of appendages, the anterior pair called chelicerae and the second pair pedipalps, with which the spider captures and paralyzes its prey, injecting into it venom produced in the poison glands. The spider then liquefies the tissues of the prey with a digestive fluid and sucks this broth into its stomach where it may be stored in a digestive gland. Breathing is by means of tracheae (air tubes) or book lungsbook lung,
terrestrial respiratory organ characteristic of arachnids such as scorpions and primitive spiders. Each book lung consists of hollow flat plates. Air bathes the outer surface of the plates and blood circulates within them, facilitating the exchange of gases.
..... Click the link for more information. , or both. Arachnid book lungs are similar to the gill books of horseshoe crabshorseshoe crab,
large, primitive marine arthropod of the family Limulidae, related to the spider and scorpion and sometimes called a king crab (a name also used for the largest of the edible true crabs).
..... Click the link for more information. but are internal and adapted to a terrestrial habitat. Young, growing spiders can regenerate missing legs and parts of legs. Three pairs of spinnerets toward the tip of the abdomen produce protein-containing fluids that harden as they are drawn out to form silk threads. Several kinds of silk glands and spinnerets produce different kinds of silk used variously for constructing cocoons or egg sacs, spinning webs, and binding prey; other light strands are spun out for ballooning, or floating, the spiders, especially young ones, long distances on air currents. Spider silk is used for the cross hairs in certain optical instruments. Spiders live chiefly on insects and other arthropods; some large spiders ensnare and kill small snakes, birds, and mammals. Many are cannibalistic; the female may eat the male when courtship and mating are completed. Most species are solitary, but a few live socially. Several species of spiders have bites that are exceptionally painful, or even dangerous to humans. Species of black widowblack widow,
poisonous spider of the genus Latrodectus, found throughout North and South America and common in the SW United States. The name derives from the fact that the female, like those of many other spider species, may eat the male after mating.
..... Click the link for more information. spiders, which are found in the warmer parts of the world including the United States and S Canada, have a virulent neurotoxic venom. The bite venom of the brown recluse spiderbrown recluse spider
or violin spider,
poisonous nocturnal spider, Loxoceles reclusa, most common in the SE and S central United States. Adults are 3-8 in. (10 mm) long and are light brown with a dark, violin-shaped mark on the back near the head.
..... Click the link for more information. of SE and S central United States decomposes tissue, resulting in slow healing and sometimes leaving a sunken scar as large as a quarter. Among the more interesting spiders are the tarantulastarantula
, name applied chiefly to species of the large, hairy spiders of the family Theraphosidae of North and South America, Africa, S and SE Asia, and Australia. The body of a tarantula, in the case of the largest, the Goliath birdeater (Theraphosa blondi
..... Click the link for more information. , which include the largest spider, the Goliath birdeater; the trapdoor spiderstrapdoor spider,
burrow-dwelling spider of the Old and New Worlds. Trapdoor spiders dig burrows, which they line with silk and protect by constructing one or two circular, hinged trapdoors. The spiders emerge through the snug-fitting camouflaged doors to search for prey.
..... Click the link for more information. , which ambushes its prey from a silk-lined burrow covered by a hinged lid; the orb weavers, which spin beautiful circular webs; the diving bell spider, which lives underwater and uses a silk-enclosed air bubble to breathe; and the crab spiders, jumping spiders, and wolf spiders, named for their habits. Spiders are classified in the phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
..... Click the link for more information. , class Arachnida, order Araneae. Bibliography See B. J. Kaston, How to Know the Spiders (3d ed. 1978); R. F. Foelix, Biology of Spiders (1982); The Audubon Society Field Guide to North American Insects and Spiders (1992). spider The diagonal support in a Newtonian telescope.Spider (pop culture)Beginning in 1931, the Spider, a character created by author Grant Stockbridge (pseudonym of Norvell Page), emerged as one of the most popular heroes of pulp magazine fiction. Two years later, his popular adventures supported the formation of a monthly magazine, The Spider, with episodes that would be gathered at a later date and reissued in books. The Spider dedicated itself to the task of killing criminals and worked as a vigilante outside of the law and public approval. In 1935, on the heels of the popularity of Bela Lugosi‘s Dracula (1931), the Spider encountered one of its most horrendous foes, the Vampire King, and began the process of destroying this evil royalty. The Spider was the secret identity of wealthy businessman Richard Wentworth. After donning a free-flowing uniform complete with hood and cape, a bullet-proof vest, false teeth, and mask, Wentworth turned into a crime fighter on the streets of New York City. The Spider’s major assets were agility, intelligence, and determination. It was strong and acquitted itself quite well in hand-to-hand fighting. Its major weapon, above and beyond normal weapons like handguns, was a gun that squirted a gooey liquid that formed a web, entrapping its target. Unlike modern superheroes, the Spider had no supernormal powers. It did have a sidekick, Ram Singh from India, who served as his ultimate back-up system. The Vampire King, the 1930s equivalent of the super villain, was a monster from South America. It is modelled not on the European vampire, but on the camazotz, the Mayan bat god/demon who made its most memorable appearance in the ancient text, Popol Vuh. It appeared as a large bat-man with exaggerated and somewhat grotesque features, including huge ears, wings, and claw-like hands with slender, elongated fingers. It did not possess supernatural powers and could not, for example, change his outward form. It was adept at flying and had great physical strength. The Vampire King’s greatest asset, however, was the control over a large flock of vampire bats, which he could command to attack. Two South American natives accompanied him and used poisonous darts. Two huge half man/half animal monsters also accompanied him—a pig-man and an armadillo-man. The final confrontation between the Spider and the Vampire King occurred after the Spider’s capture. While the Vampire King conversed with the crime bosses to negotiate control of their North American enterprises, it drank the Spider’s blood, which had been drained into a chalice. The Vampire King offered the criminals a sip as a means of sealing their evil pact. The Spider recovered just in time and his comrades appeared to assist it. The fight that ensued led to the Vampire King’s destruction. The Spider was brought to the screen in several Saturday matinee serials of the 1930s, but the Vampire King was not among its movie foes. Although a major source for contemporary superheroes, and seemingly a direct inspiration for Spiderman, the Spider was all but forgotten except with a few movie buffs, when, in 1991, he was revived by Eclipse Books in a new comic book series. Sources: Harmon, Jim, and Donald F. Glut. The Great Movie Serials: Their Sound and Fury. Garden City, NY: Doubleday & Company, 1972. 384 pp.The Spider: Reign of the Vampire King. 1–3. Forestville, CA: Eclipse Books, 1991–1992.Stockbridge, Grant. Death Reign of the Vampire King: a Spider Novel. London: Mews Books, 1935, 1976. 128 pp. Rept. New York: Carroll & Graf, 1992. 319 pp.What does it mean when you dream about a spider?A common household spider may symbolize the intricate web that the dreamer has woven or a web that has entrapped the dreamer. Alternatively, it may indicate feeling entangled in a sticky, clinging relationship. spider[′spīd·ər] (agriculture) An attachment to a cultivator that pulverizes the soil. (computer science) A program that searches the Internet for new, publicly accessible resources and transmits its findings to a database that is accessible to search engines. (electricity) A structure on the shaft of an electric rotating machine that supports the core or poles of the rotor, consisting of a hub, spokes, and rim, or some similar arrangement. (engineering) The part of an ejector mechanism which operates ejector pins in a molding press. In extrusion, the membranes which support a mandrel within the head-die assembly. (engineering acoustics) A highly flexible perforated or corrugated disk used to center the voice coil of a dynamic loudspeaker with respect to the pole piece without appreciably hindering in-and-out motion of the voice coil and its attached diaphragm. (invertebrate zoology) The common name for arachnids comprising the order Araneida. (mechanical engineering) In a universal joint, a part with four projections that is pivoted between the forked ends of two shafts and transmits motion between the shafts. Also known as cross. (metallurgy) In founding, a device that consists of a frame with radiating arms or members and is used for strengthening a core or mold. (petroleum engineering) A steel block with a tapered opening which permits passage of pipe during movement into or from a well; designed to hold pipe suspended in the well when the slips are placed in the tapered opening and in contact with the pipe. spider  Tail-rotor spider. By moving in or out, the spider controls the pitch changes of the tail-rotor blade.i. That portion of a propeller assembly used to Support the propeller blades. The spider and the roots of the blades are enclosed in a high-strength propeller hub.
ii. A system of pitch control in helicopters' rotors. The arms of the spider are connected to the leading edges of the rotor blades by control rods, and the spider spindle is situated inside the rotor shaft. When cyclic pitch changes are made, a ball joint mounting allows the spider to tilt. Collective pitch changes are made by raising or lowering the whole spider.spider1. any predatory silk-producing arachnid of the order Araneae, having four pairs of legs and a rounded unsegmented body consisting of abdomen and cephalothorax 2. any of various similar or related arachnids 3. a hub fitted with radiating spokes or arms that serve to transmit power or support a load 4. any implement or tool having the shape of a spider 5. Nautical a metal frame fitted at the base of a mast to which halyards are tied when not in use 6. Brit a cluster of elastic straps fastened at a central point and used to hold a load on a car rack, motorcycle, etc. 7. Billiards Snooker a rest having long legs, used to raise the cue above the level of the height of the ball 8. Angling an artificial fly tied with a hackle and no wings, perhaps originally thought to imitate a spider spider (World-Wide Web)(Or "robot", "crawler") A program thatautomatically explores the World-Wide Web by retrieving adocument and recursively retrieving some or all the documentsthat are referenced in it. This is in contrast with a normalweb browser operated by a human that doesn't automaticallyfollow links other than inline images and URL redirection.
The algorithm used to pick which references to followstrongly depends on the program's purpose. Index-buildingspiders usually retrieve a significant proportion of thereferences. The other extreme is spiders that try to validatethe references in a set of documents; these usually do notretrieve any of the links apart from redirections.
The standard for robot exclusion is designed to avoid someproblems with spiders.
Early examples were Lycos and WebCrawler.
http://info.webcrawler.com/mak/projects/robots/robots.html.spider(1) Also known as a "crawler," "robot" (bot) and "intelligent agent," a spider is a program that searches for information on the Web. Spiders are widely used by Web search engines to index all the pages on a site by following the links from page to page. The search engine summarizes the content and adds the links to their indexes. Spiders are also used to locate Web pages that sell a particular product or to find blogs that have opinions about a product. See surface Web and bot.
(2) Software that indexes a single website for browsing offline. See offline browser.
(3) (Spider) A gaming platform from AMD. See Phenom.Spider (dreams)Some believe that the spider is symbolic of an unkind and sneaky individual. Are you the spider building a web, or are you being dragged into one? A spider’s web may represent entanglement and the general complexities of life. Depending on the details of the dream, it could also symbolize a smothering individual. Ironically, very old dream interpretations say that the spider is an omen of good luck! Alternatively, Carl Jung felt that the spider’s web was a symbol of wholeness due to its formation (circular shape), construction, and complexity. As a “mandala, ” the spider web might hold valuable meaning for the dreamer, and symbolize an integration of the dreamer’s personality, leading to greater self-awareness and resulting in feelings of completeness. Therefore, the spider and his web may be considered profound and spiritual dream symbols that call for greater selfunderstanding and encourage us to derive meaning and satisfaction from the intricate framework and interplay of life.spider
spider [spi´der] 1. an arthropod of the class Arachnida.2. vascular spider.spider bite in the United States, the two spiders whose bites are most likely to cause a serious reaction are the black widow spider(Latrodectus mactans) and the brown recluse spider(Loxosceles reclusa). Signs and symptoms are associated with the effects of injection of the venom and include pain at the injection site, weakness, muscle pain and cramps, elevated blood pressure, and restlessness. Bites by these spiders must be treated promptly and effectively. First aid is the same as that for a snakebite and includes the following:
1. Wash the wound with soap and water and apply a clean dressing.
2. Apply a constricting band between the area of the bite and the heart.
3. Keep the person calm and transport him to the hospital or medical facility as soon as possible.
4. If swelling becomes apparent, apply a cold compress to the area.black widow spider Latrodectus mactans, a poisonous spider found in North America; see spider bite.brown recluse spider Loxosceles reclusa, a poisonous spider found in North America; see spider bite.vascular spider a telangiectasis due to dilatation and branching of superficial cutaneous arteries, which presents as a bright red central portion with branching radiations, the whole somewhat resembling the configuration of a spider. The lesions may occur singly or in large numbers, and may be nevoid or acquired, being commonly associated with pregnancy and liver disease. Called also nevus araneus, spider nevus, and spider telangiectasia.spi·der (spī'dĕr), 1. An arthropod of the order Araneida (subclass Arachnida) characterized by four pairs of legs; a cephalothorax; a globose, smooth abdomen; and a complex of web-spinning spinnerets. Among the venomous spiders found in the New World are the black widow spider, Latrodectus mactans; red-legged widow spider, Latrodectus bishopi; pruning spider, or Peruvian tarantula, Glyptocranium gasteracanthoides; Chilean brown spider, Loxosceles laeta; Peruvian brown spider, Loxosceles rufipes; brown recluse spider of North America, Loxosceles reclusus. 2. An obstructive growth in the teat of a cow. [O. E. spinnan, to spin] spider (spī′dər)n. Any of numerous arachnids of the order Araneae, having a body divided into a cephalothorax and an abdomen, eight legs, two chelicerae that bear venom glands, and two or more spinnerets that produce the silk used to make nests, cocoons, or webs for trapping insects.A term of art referring to a thing likened to a spider, either morphologically, or functionally
Dermatology See Spider angioma
Entomology A chelicerate arthropod of the class Arachnida, which has 8 legs, a cephalothorax, a smooth, round abdomen, and equipment for spinning webs; 2 spiders are of medical importance in the US: Latrodectus mactans, the black widow spider, and Loxosceles reclusa, the North American brown recluse spider
Online A software program that resides in a PC and, when launched, crawls the Web for requested information, searching for keywords in the title or text of digitalised documents, simultaneously scanning entire libraries of documents, and tracking down millions of cross-references; when finished, the spider ranks the files in order of probable relevancespider Dermatology See Spider angioma Entomology A chelicerate arthropod of the class Arachnida, which has 8 legs, a cephalothorax, a smooth, round abdomen, and equipment for spinning webs; 2 spiders are of medical importance in the US: Lactrodectus mactans, the black widow spider and Loxosceles reclusus, the North American brown recluse spider. See Black widow spider, Brown recluse spider. spi·der (spī'dĕr) 1. An arthropod of the order Araneida characterized by having four pairs of legs; a cephalothorax; a globose, smooth abdomen; and a complex of spinnerets, which build the web. Among the venomous spiders are the black widow spider, Latrodectus mactans, and the brown recluse spider, Loxosceles reclusus. 2. Synonym(s): spider angioma. [O. E. spinnan, to spin]Spider
SpiderAlso called a Standard & Poor's Depositary Receipt or a SPDR. An exchange-traded fund that tracks the Standard and Poor's 500. The organization issuing the SPDR owns each of the stocks traded on the S&P 500 in approximate ratio to their market capitalization. SPDR shares can be bought, sold, short-sold, traded on margin; they generally function as if they were stocks. Dividends are paid quarterly and are based on the accumulated dividends of all the stocks represented in the SPDR, less any expenses. Investors use SPDRs (and indeed all exchange-traded funds) as a way to easily diversify their portfolios at relatively low cost. Investors also see the demand for SPDRs as an indicator of which direction the market believes the S&P 500 is going. See also: Mid-Cap SPDR.spider See Standard & Poor's Depositary Receipt.SPIDER
| Acronym | Definition |
|---|
| SPIDER➣Segmented Planar Imaging Detector for Electro-Optical Reconnaissance (Lockheed Martin) | | SPIDER➣Spectral Phase Interferometry for Direct Electric-Field Reconstruction (interferometric technique to accurately characterize optical pulses) | | SPIDER➣Seamless Product Information, Data Exchange, and Repository (CNO OTT) | | SPIDER➣System for Processing Image Data in Electron Microscopy and Related Fields | | SPIDER➣Shared Pedagogical Initiative: A Database of Electronic Resources (University of California) | | SPIDER➣Special Police Information Data Entry and Retrieval | | SPIDER➣Scalable Processor-Independent Design for Extended Reliability | | SPIDER➣Significant Problems Identified to Division for Evaluation & Review | | SPIDER➣SGS Portable Integrated Data Extraction and Reduction | | SPIDER➣Speech Interface for Data Exploitation and Retrieval | | SPIDER➣SPAWAR PEO Integrated Data Environment and Repository |
spider
Related to spider: wolf spiderSynonyms for spidernoun predatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the bodyRelated Words- arachnid
- arachnoid
- Araneae
- Araneida
- order Araneae
- order Araneida
- orb-weaving spider
- Argiope aurantia
- black and gold garden spider
- Araneus cavaticus
- barn spider
- Aranea diademata
- garden spider
- comb-footed spider
- theridiid
- black widow
- Latrodectus mactans
- tarantula
- hunting spider
- wolf spider
- trap-door spider
noun a computer program that prowls the internet looking for publicly accessible resources that can be added to a databaseSynonymsRelated Words- computer program
- computer programme
- programme
- program
noun a skillet made of cast ironRelated Words |