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单词 cockroach
释义

cockroach


cock·roach

C0446700 (kŏk′rōch′)n. Any of numerous insects of the order or suborder Blattaria, having oval flat bodies and laying eggs in hardened cases, and including several species that are common household pests.
[By folk etymology from obsolete cacarootch, from Spanish cucaracha, from cuca, caterpillar.]Word History: The English word cockroach comes from the Spanish cucaracha. An early English form of cockroach is found in the writings of Captain John Smith, the English adventurer who helped found the British colony of Virginia in 1607. In a work first published in 1624, Smith describes the insects on the islands of Bermuda: "Musketas and Flies are also too busie, with a certaine India Bug, called by the Spaniards a Cacarootch, the which creeping into Chests they eat and defile with their ill-sented dung." Smith's spelling of the Spanish word was perhaps influenced by caca, the word for "excrement" in the baby-talk of many European languages, including Spanish and English. Later the form taken by the Spanish word cucaracha in English was influenced by another word, cock, "rooster," and the modern form cockroach was born. (This phenomenon, the alteration of a word resulting from a mistaken assumption about its meaning, is called folk etymology by linguists.) The Spanish word cucaracha has nothing to do with roosters, however. It is thought to be related to cuca, a word for a common kind of moth caterpillar in Spain.

cockroach

(ˈkɒkˌrəʊtʃ) n (Animals) any insect of the suborder Blattodea (or Blattaria), such as Blatta orientalis (oriental cockroach or black beetle): order Dictyoptera. They have an oval flattened body with long antennae and biting mouthparts and are common household pests. See also German cockroach, mantis[C17: from Spanish cucaracha, of obscure origin]

cock•roach

(ˈkɒkˌroʊtʃ)

n. any of numerous orthopterous insects of the family Blattidae, characterized by a flattened body, rapid movements, and usu. nocturnal habits and including several common household pests. Also called roach. [1615–25; < Sp cucaracha, of uncertain orig., assimilated by folk etym. to cock1, roach2]

cock·roach

(kŏk′rōch′) Any of numerous brownish or black insects having a flat body and usually long antennae. Certain species are common household pests.
Thesaurus
Noun1.cockroach - any of numerous chiefly nocturnal insectscockroach - any of numerous chiefly nocturnal insects; some are domestic pestsroachdictyopterous insect - cockroaches and mantidsBlattaria, Blattodea, suborder Blattaria, suborder Blattodea - cockroaches; in some classifications considered an orderAsiatic cockroach, blackbeetle, Blatta orientalis, oriental cockroach, oriental roach - dark brown cockroach originally from orient now nearly cosmopolitan in distributionAmerican cockroach, Periplaneta americana - large reddish brown free-flying cockroach originally from southern United States but now widely distributedAustralian cockroach, Periplaneta australasiae - widely distributed in warm countriesBlattella germanica, Croton bug, crotonbug, German cockroach, water bug - small light-brown cockroach brought to United States from Europe; a common household pestgiant cockroach - large tropical American cockroaches
Translations
蟑螂

cockroach

(ˈkokrəutʃ) noun a beetle-like insect which is a household pest. 蟑螂 蟑螂

cockroach

蟑螂zhCN

cockroach


cockroach

or

roach,

name applied to some 4,600 species of flat-bodied, oval insectsinsect,
invertebrate animal of the class Insecta of the phylum Arthropoda. Like other arthropods, an insect has a hard outer covering, or exoskeleton, a segmented body, and jointed legs. Adult insects typically have wings and are the only flying invertebrates.
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 in the order Blattodea. Cockroaches have long antennae, long legs adapted to running, and a flat extension of the upper body wall that conceals the head. They range from 1-4 in. to 3 in. (.6–7.6 cm) in length. Some cockroaches have two pairs of well-developed wings, the front pair covering the hind pair when at rest; others have reduced wings or none at all. In some species only the wings of the female are reduced or absent. Many species are able to fly well, although the familiar household species do not fly. Most cockroaches are shiny brown or black, but bright yellows, reds, and greens occur in some tropical species.

Cockroaches are night-active insects and most live in damp places; most are omnivorous scavengers. They are worldwide in distribution but are most numerous in the tropics. Most species live in the wild in their native regions, e.g., the wood cockroaches, species of the genus Parcoblatta, found under forest litter in the NE United States.

A few tropical and subtropical species that have been introduced into the temperate zone have become residents in human homes, where they multiply rapidly and are serious pests. They invade food supplies and emit foul-smelling glandular secretions. Their shape enables them to use tiny cracks as hiding places. They are popularly believed to be carriers of human diseases, although this has not been proved.

Cockroaches reproduce sexually. Their eggs are encased in capsules called oothecae, which in some species remain attached to the abdomen of the female until the eggs hatch. In a few species the ootheca is retained within the body of the female and the young are born live. Young resemble the adults except in size.

The large, dark Oriental cockroach, Blatta orientalis, is a cosmopolitan household species. The smaller German cockroach, or Croton bug, Blattella germanica, native to Europe, is the common urban cockroach of the NE United States. The American cockroach, Periplaneta americana, is a large light-reddish species that invades houses in the S United States.

The group as a whole is extremely old; fossil evidence indicates its extreme abundance during the Carboniferous period, about 350 million years ago. These ancient cockroaches were able to fly and were probably the first flying animals. Cockroaches are classified in several families of 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.
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, class Insecta, order Blattodea.

cockroach

[′käk‚rōch] (invertebrate zoology) roach

cockroach

any insect of the suborder Blattodea (or Blattaria), such as Blatta orientalis (oriental cockroach or black beetle): order Dictyoptera. They have an oval flattened body with long antennae and biting mouthparts and are common household pests

cockroach


cockroach

(kŏk′rōch′)n. Any of numerous insects of the order or suborder Blattaria, having oval flat bodies and laying eggs in hardened cases, and including several species that are common household pests.
A largely nocturnal insect, Order Blattaria; most common US roaches are Periplaneta americana, Blattella germanica and B orientalis, and are of medical interest as potential vectors for bacteria—e.g., Salmonella species; other organisms cultured from cockroaches include Shigella, Proteus, Mycobacterium spp, E coli, Klebsiella pneumoniae and Pseudomonas aeruginosa

cockroach

Entomology A largely nocturnal insect, Order Blattaria; most common US roaches are Periplaneta americana, Blattella germanica and B orientalis, and are of medical interest as potential vectors for bacteria–eg, Salmonella spp; other organisms cultured from cockroaches include Shigella, Proteus, Mycobacterium spp, E coli, Klebsiella pneumoniae and Pseudomonas aeruginosa

cockroach

the common name for members of the insect order Dictyoptera.

cockroach


  • noun

Synonyms for cockroach

noun any of numerous chiefly nocturnal insects

Synonyms

  • roach

Related Words

  • dictyopterous insect
  • Blattaria
  • Blattodea
  • suborder Blattaria
  • suborder Blattodea
  • Asiatic cockroach
  • blackbeetle
  • Blatta orientalis
  • oriental cockroach
  • oriental roach
  • American cockroach
  • Periplaneta americana
  • Australian cockroach
  • Periplaneta australasiae
  • Blattella germanica
  • Croton bug
  • crotonbug
  • German cockroach
  • water bug
  • giant cockroach
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更新时间:2024/12/23 2:11:49