| 释义 |
carrier
car·ri·er C0127700 (kăr′ē-ər)n.1. One that transports or conveys: baggage carriers; a message carrier.2. One, such as a person, business, or organization, that deals in the transport of passengers or goods.3. A mechanism or device by which something is conveyed or conducted.4. Medicine A person or animal that shows no symptoms of a disease but harbors the infectious agent of that disease and is capable of transmitting it to others.5. Genetics An individual that carries one gene for a particular recessive trait. A carrier does not express the trait but, when mated with another carrier, can produce offspring that do.6. Physics A boson, especially a gauge boson, that conveys a force or mediates an interaction between subatomic particles.7. Electronics a. A carrier wave.b. A charge-carrying entity, especially an electron or a hole in a semiconductor.8. An aircraft carrier.9. An insurance or underwriting organization.10. A telecommunications company.Carrier (ˈkærɪə) n (Peoples) a member of an Athapaskan Native North American people of British Columbia
carrier (ˈkærɪə) n1. a person, thing, or organization employed to carry goods, passengers, etc2. (Mechanical Engineering) a mechanism by which something is carried or moved, such as a device for transmitting rotation from the faceplate of a lathe to the workpiece3. (Pathology) pathol another name for vector34. (Pathology) pathol a person or animal that, without having any symptoms of a disease, is capable of transmitting it to others5. (General Physics) physics Also called: charge carrier an electron, ion, or hole that carries the charge in a conductor or semiconductor6. (Electronics) short for carrier wave7. (Chemistry) chem a. the inert solid on which a dyestuff is adsorbed in forming a lakeb. a substance, such as kieselguhr or asbestos, used to support a catalystc. an inactive substance containing a radioisotope used in radioactive tracingd. an inert gas used to transport the sample through a gas-chromatography columne. a catalyst that effects the transfer of an atom or group from one molecule to another8. (Military) See aircraft carrier9. (Breeds) a breed of domestic fancy pigeon having a large walnut-shaped wattle over the beak; a distinct variety of pigeon from the homing or carrier pigeon. See also carrier pigeon10. (Automotive Engineering) a US name for roof rackcar•ri•er (ˈkær i ər)
n. 1. a person or thing that carries. 2. a postal employee who delivers or collects mail. 3. a person who delivers newspapers or magazines. 4. a. an individual or company engaged in transporting passengers or goods for profit. b. common carrier. 5. an underwriter or insurer. 6. a frame attached to a vehicle for carrying luggage or skis. 7. aircraft carrier. 8. an individual harboring specific pathogenic organisms who, though often immune to the agent harbored, may transmit the agent to others. 9. a. an individual with an unexpressed recessive genetic trait. b. the bearer of a defective gene. 10. Also called car′rier wave`. the radio wave whose amplitude, frequency, or phase is to be varied or modulated to transmit a signal. 11. a mechanism by which something is carried or moved. 12. Chem. a. a catalytic agent responsible for the transfer of an element or molecule from one compound to another. b. a usu. inactive substance that serves as a vehicle for an active substance. [1350–1400] car·ri·er (kăr′ē-ər)1. A person or animal that serves as a host for a disease-causing organism and can transmit it to others, but does not have symptoms of the disease. Mosquitoes are carriers of malaria, for example.2. An organism that carries a gene for a trait but does not show the trait itself. Carriers can produce offspring that express the trait by mating with another carrier of the same gene.Thesaurus| Noun | 1. |  carrier - someone whose employment involves carrying something; "the bonds were transmitted by carrier"bearer, totertraveler, traveller - a person who changes location | | 2. | carrier - a self-propelled wheeled vehicle designed specifically to carry something; "refrigerated carriers have revolutionized the grocery business"self-propelled vehicle - a wheeled vehicle that carries in itself a means of propulsion | | 3. |  carrier - a large warship that carries planes and has a long flat deck for takeoffs and landingsaircraft carrier, attack aircraft carrier, flattoparrester, arrester hook - a restraint that slows airplanes as they land on the flight deck of an aircraft carrierflight deck, landing deck - the upper deck of an aircraft carrier; used as a runwaycombat ship, war vessel, warship - a government ship that is available for waging war | | 4. | carrier - an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reactionchemical, chemical substance - material produced by or used in a reaction involving changes in atoms or molecules | | 5. | carrier - a person or firm in the business of transporting people or goods or messagescommon carrierline - a commercial organization serving as a common carrierbusiness, business concern, business organisation, business organization, concern - a commercial or industrial enterprise and the people who constitute it; "he bought his brother's business"; "a small mom-and-pop business"; "a racially integrated business concern" | | 6. | carrier - a radio wave that can be modulated in order to transmit a signalcarrier waveradio emission, radio radiation, radio wave - an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m | | 7. |  carrier - a man who delivers the mail letter carrier, mail carrier, mailman, postmandelivery boy, deliveryman, deliverer - someone employed to make deliveries | | 8. | carrier - a boy who delivers newspapers newsboydelivery boy, deliveryman, deliverer - someone employed to make deliveries | | 9. | carrier - (medicine) a person (or animal) who has some pathogen to which he is immune but who can pass it on to othersimmune carriermedical specialty, medicine - the branches of medical science that deal with nonsurgical techniquestransmitter, vector - any agent (person or animal or microorganism) that carries and transmits a disease; "mosquitos are vectors of malaria and yellow fever"; "fleas are vectors of the plague"; "aphids are transmitters of plant diseases"; "when medical scientists talk about vectors they are usually talking about insects"immune - a person who is immune to a particular infection | | 10. | carrier - a rack attached to a vehicle; for carrying luggage or skis or the likebomb rack - a device on an aircraft for carrying bombsluggage carrier - carrier (as behind a bicycle seat) for luggageluggage rack, roof rack - carrier for holding luggage above the seats of a train or on top of a carrack - framework for holding objectsski rack - a carrier for holding skis on top of a vehicle | | 11. | carrier - (genetics) an organism that possesses a recessive gene whose effect is masked by a dominant allele; the associated trait is not apparent but can be passed on to offspringorganism, being - a living thing that has (or can develop) the ability to act or function independentlygenetic science, genetics - the branch of biology that studies heredity and variation in organisms |
carriernounA person who carries messages or is sent on errands:bearer, conveyer, courier, envoy, messenger, runner, transporter.Translationsporteurcorriereportaereiportapacchivettoredragercarrier
spear carrier1. An actor with a minor part in a production. I know you're disappointed to just be a spear carrier in the play, but if you do well in this role, maybe you'll get a bigger one next year.2. By extension, a subordinate, especially one who has an unimportant role in some group or thing. Adam's just a spear carrier, we can make this decision without him. Have one of those spear carriers get me a cup of coffee!See also: carrier, spearcarrier n. a narcotics seller or transporter. (see also courier.) The carrier has the most dangerous job of all. carrier
carrier1. a mechanism by which something is carried or moved, such as a device for transmitting rotation from the faceplate of a lathe to the workpiece 2. Pathol another name for vector3. Pathol a person or animal that, without having any symptoms of a disease, is capable of transmitting it to others 4. Physics an electron, ion, or hole that carries the charge in a conductor or semiconductor 5. short for carrier wave6. Chema. the inert solid on which a dyestuff is adsorbed in forming a lake b. a substance, such as kieselguhr or asbestos, used to support a catalyst c. an inactive substance containing a radioisotope used in radioactive tracing d. an inert gas used to transport the sample through a gas-chromatography column e. a catalyst that effects the transfer of an atom or group from one molecule to another 7. a breed of domestic fancy pigeon having a large walnut-shaped wattle over the beak; a distinct variety of pigeon from the homing or carrier pigeon 8. a US name for roof rackcarrier[′kar·ē·ər] (chemistry) A substance that, when associated with a trace of another substance, will carry the trace with it through a chemical or physical process. (communications) The radio wave produced by a transmitter when there is no modulating signal, or any other wave, recurring series of pulses, or direct current capable of being modulated. Also known as carrier wave; signal carrier. A wave generated locally at a receiver that, when combined with the sidebands of a suppressed-carrier transmission in a suitable detector, produces the modulating wave. carrier system (genetics) An individual who is heterozygous for a recessive gene. (immunology) A protein to which a hapten becomes attached, thereby rendering the hapten immunogenic. (mechanical engineering) Any machine for transporting materials or people. (medicine) A person who harbors and eliminates an infectious agent and so transmits it to others, but who may not show signs of the disease. (naval architecture) aircraft carrier Carrier A periodic waveform upon which an information-bearing signal is impressed. This process is known as modulation and comprises a variety of forms such as amplitude, phase, and frequency modulation. The most common type of carrier is the sinusoidal carrier, but any periodic waveform followed by a band-pass filter can serve as a carrier. carrier1. A mobile prime mover for transporting construction machines; also may serve as the working base or undercarriage of the machine. 2. A container attached to or hung from a trolley for moving a load from one point to another on a construction site. 3. A carrier angle or carrier bar which supports treads formed from metal grating.carrier(1) An organization that provides communications and networking services. See common carrier, private carrier and MVNO.
(2) A waveform that has a fixed center frequency. It is used to contain data and establish a unique channel that can be identified independently of other channels. Carriers are the primary method used to send wireless signals over the air in order to differentiate between transmitting stations. For example, AM and FM radio, TV, satellite and Wi-Fi all use carriers. In fact, AM and FM radio actually use the carrier frequency as their station's channel number.
Multiple Carriers - Multiple Data Streams
Carriers are also used to transmit multiple channels simultaneously within a wire or fiber. For example, several voice, data and video signals can travel over the same line, each residing in its own carrier vibrating at a different frequency. See definition #2 in broadband.
Multiple Carriers - One Data Stream
Instead of sending a separate stream of data in each carrier, multiple carriers can be used for only one channel of data. For example, the widely used orthogonal frequency division multiplexing (OFDM) method uses numerous subcarriers for only one transmitting channel and one stream of data (see OFDM). See modulation and subcarrier.
 | | Carrier Signal |
|---|
| The radio station transmits audio in a carrier, which is altered (modulated) with the analog signal. The receiving tuner latches onto the carrier's center frequency and isolates the audio, which is sent to the amplifier. The amplifier boosts the signal and sends it to the speakers. Carriers are also used to transmit digital data (see modulation). |
Carrier
carrier [kar´e-er] 1. an individual who harbors the specific organisms of a disease without manifest symptoms and is capable of transmitting the infection; the condition of such an individual is referred to as the carrier state.2. in genetics, an individual who is heterozygous for a recessive gene and thus does not express the recessive phenotype but can transmit it to offspring. Only females can be carriers of X-linked recessive traits.3. a substance that carries a radioisotopic or other label, as in a tracer study. A second isotope mixed with a particular isotope is also referred to as a carrier. See also carrier-free.4. a transport protein that carries specific substances, e.g., in the blood or across cell membranes.5. in immunology, a macromolecular substance to which a hapten is coupled in order to produce an immune response against the hapten. immune responses are usually produced only against large molecules capable of simultaneously binding both B cells and helper T cells.car·ri·er (ka'rē-er), 1. A person who or animal that harbors a specific infectious agent in the absence of discernible clinical disease and serves as a potential source of infection.
See also: label, tracer. 2. Any chemical capable of accepting an atom, radical, or subatomic particle from one compound, then passing it to another; for example, cytochromes are electron carriers; homocysteine is a methyl carrier.
See also: label, tracer. 3. A substance that, by having chemical properties closely related to or indistinguishable from those of a radioactive tracer, is thus able to carry the tracer through a precipitation or similar chemical procedure; the best carriers are the nonradioactive isotopes of the tracer in question.
See also: label, tracer. 4. A large immunogen (usually a protein) that, when coupled to a hapten, facilitates an immune response to the hapten. 5. A component of a membrane that causes the transfer of a substance from one side of the membrane to the other. 6. The mobile phase in chromatography. 7. A component of a biologic fluid that binds a ligand and transports that ligand to a ne wlocation. carrier (kăr′ē-ər)n.1. A mechanism or device by which something is conveyed or conducted.2. Medicine A person or animal that shows no symptoms of a disease but harbors the infectious agent of that disease and is capable of transmitting it to others.3. Genetics An individual that carries one gene for a particular recessive trait. A carrier does not express the trait but, when mated with another carrier, can produce offspring that do.4. An insurance or underwriting organization.An individual who possesses one copy of a mutant allele that causes disease only when 2 copies are present; carriers are not affected by the disease. The mating of 2 carriers can result in a child who has a disease that follows simple mendelian geneticscarrier Epidemiology A person or animal without apparent disease who harbors a specific pathogen can transmit it to others; the carrier state may occur in a person with an asymptomatic infection–asymptomatic carrier, or during the incubation period, convalescence, and postconvalescence of a person with clinically recognizable disease; the carrier state may be of
short or long duration–transient or chronic. See Latent carrier, Silent carrier Genetics A state in which a person has a gene known to be linked to a particular condition, who does not manifest the disease; in humans the classic carrier state is that of a ♀ with a defective gene on the X chromosome, which does not manifest itself in ♀ with 2 X chromosomes–one of which is presumed to be normal–for a particular condition Infectious disease A person infected with a bug, who can act as a 'vector' and transmit the infection to others but is asymptomatic Types Silent carriers–eg with TB, retain infectiousness; latent carriers–eg those with HSV are not infectious. See Typhoid Mary Managed care 1. An organization–eg, an insurance company, with an HCFA contract to administer claims processing and make Medicare payments to health care providers for Medicare Part B benefits. See Fiscal Intermediary, Part B.2. A private contractor that administers claims processing and payment for Medicare Part B services. See Supplementary Medical Insurance Obstetrics A surrogate mother who is carrying a gestational product to term. See Gestational carrier Pharmacology A peptide, protein, or other substance that binds to a therapeutic agent, and transports it in the circulation. See Vehicle.car·ri·er (kar'ē-ĕr) 1. A person or animal harboring a specific infectious agent in the absence of clinical disease symptoms and serving as a potential source of infection. 2. Any chemical capable of accepting an atom, radical, or subatomic particle from one compound, then passing it to another. 3. A substance that, by having chemical properties closely related to or indistinguishable from those of a radioactive tracer, is able to carry the tracer through a precipitation or similar chemical procedure.
See also: label, tracer4. A large immunogen that when coupled to a hapten facilitates an immune response to the hapten. 5. In the U.S., a private health care insurance company that has a contract with Medicare to pay Medicare part B claims. 6. A business entity that provides health care benefits to individuals or other businesses. carrier 1. A person permanently or temporarily immune to a disease-producing organism (pathogen) which is present in his or her body, and which can be passed on, directly or indirectly, to others. A person who carries infectious organisms without ever having suffered the disease is known as a ‘casual carrier’. 2. A person with one normal and one affected gene (heterozygous) for a condition which is expressed only if both genes bear the defect for the condition (recessive inheritance). Such a person does not show the condition but can pass on the gene to an offspring who could inherit the other gene from the other parent. 3. Any molecule that, by attaching itself to a non-immunogenic molecule, can provide EPITOPES for helper T cells thus making the second molecule immunogenic. See also TYPHOID CARRIER. carrier - an individual plant or animal that is infected with pathogenic organisms internally or externally without showing signs of disease, and which is capable of transferring them to others, thus causing disease. For example, typhoid carriers harbour bacteria in the gall bladder and these enter the gut in the bile and are excreted.
- an individual with a GENOTYPE containing a deleterious recessive gene such as that for PHENYLKETONURIA, that does not show in the PHENOTYPE.
CarrierA person who has a genetic defect but does not develop any symptoms or signs of the defect. The carrier's offspring may inherit the defect and develop the associated disorder.Mentioned in: Albinism, Diphtheria, Genetic Testing, Hepatitis C, Pseudoxanthoma Elasticum, Salmonella Food Poisoning, Throat Culture, Von Willebrand Disease, X-Linked Agammaglobulinemiacar·ri·er (kar'ē-ĕr) Being that harbors a specific infectious agent in the absence of discernible clinical disease and serves as a potential source of infection. carrier
Related to carrier: aircraft carriercarriern. in general, any person or business which transports property or people by any means of conveyance (truck, auto, taxi, bus, airplane, railroad, ship), almost always for a charge. The carrier is the transportation system and not the owner or operator of the system. There are two types of carriers: common carrier (in the regular business or a public utility of transportation) and a private carrier (a party not in the business, but agrees to make a delivery or carry a passenger in a specific instance). Regular transportation systems are regulated by states and by the Interstate Commerce Commission if they cross state lines. (See: common carrier, private carrier) carrier see COMMON CARRIER, CARRIAGE BY ROAD.FinancialSeeBroadbandSee CXR
See CARRcarrier
Related to carrier: aircraft carrierSynonyms for carriernoun a person who carries messages or is sent on errandsSynonyms- bearer
- conveyer
- courier
- envoy
- messenger
- runner
- transporter
Synonyms for carriernoun someone whose employment involves carrying somethingSynonymsRelated Wordsnoun a self-propelled wheeled vehicle designed specifically to carry somethingRelated Wordsnoun a large warship that carries planes and has a long flat deck for takeoffs and landingsSynonyms- aircraft carrier
- attack aircraft carrier
- flattop
Related Words- arrester
- arrester hook
- flight deck
- landing deck
- combat ship
- war vessel
- warship
noun an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reactionRelated Words- chemical
- chemical substance
noun a person or firm in the business of transporting people or goods or messagesSynonymsRelated Words- line
- business
- business concern
- business organisation
- business organization
- concern
noun a radio wave that can be modulated in order to transmit a signalSynonymsRelated Words- radio emission
- radio radiation
- radio wave
noun a man who delivers the mailSynonyms- letter carrier
- mail carrier
- mailman
- postman
Related Words- delivery boy
- deliveryman
- deliverer
noun a boy who delivers newspapersSynonymsRelated Words- delivery boy
- deliveryman
- deliverer
noun (medicine) a person (or animal) who has some pathogen to which he is immune but who can pass it on to othersSynonymsRelated Words- medical specialty
- medicine
- transmitter
- vector
- immune
noun a rack attached to a vehicleRelated Words- bomb rack
- luggage carrier
- luggage rack
- roof rack
- rack
- ski rack
noun (genetics) an organism that possesses a recessive gene whose effect is masked by a dominant alleleRelated Words- organism
- being
- genetic science
- genetics
|