carrier (def 13).
a person or thing that carries.
an employee of the post office who carries mail.
a person who delivers newspapers, magazines, etc., on a particular route.
an individual or company, as a railroad or steamship line, engaged in transporting passengers or goods for profit.
Insurance. a company that acts or functions as an underwriter or insurer.
a frame, usually of metal, attached to a vehicle for carrying skis, luggage, etc., as on top of an automobile or station wagon; rack.
Immunology. an individual harboring specific pathogenic organisms who, though often immune to the agent harbored, may transmit the disease to others.
an individual possessing an unexpressed, recessive trait.
the bearer of a defective gene.
Also called carrier wave. Radio. the wave whose amplitude, frequency, or phase is to be varied or modulated to transmit a signal.
Machinery. a mechanism by which something is carried or moved.
Chemistry. a catalytic agent that brings about a transfer of an element or group of atoms from one compound to another.
Also called charge carrier. Physics. any of the mobile electrons or holes in a metal or semiconductor that enable it to conduct electrical charge.
Physical Chemistry. a usually inactive substance that acts as a vehicle for an active substance.
Painting. base1 (def 15b).
a person, thing, or organization employed to carry goods, passengers, etc
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
(pathol) another name for vector (sense 3)
(pathol) a person or animal that, without having any symptoms of a disease, is capable of transmitting it to others
(physics) Also called charge carrier. an electron, ion, or hole that carries the charge in a conductor or semiconductor
short for carrier wave
the inert solid on which a dyestuff is adsorbed in forming a lake
a substance, such as kieselguhr or asbestos, used to support a catalyst
an inactive substance containing a radioisotope used in radioactive tracing
an inert gas used to transport the sample through a gas-chromatography column
a catalyst that effects the transfer of an atom or group from one molecule to another
See aircraft carrier
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 pigeon
a US name for roof rack
a member of an Athapaskan Native North American people of British Columbia
an electron, hole, or ion that transports the electric charge in an electric current
late 14c., agent noun from carry (v.). Meaning “person or animal that carries and disseminates infection without suffering obvious disease” is from 1899; genetic sense is 1933. As a short form of aircraft carrier it dates from 1917. Carrier pigeon is from 1640s.
carrier car·ri·er (kār’ē-ər)
A person or an animal that shows no symptoms of a disease but harbors the infectious agent of that disease and is capable of transmitting it to others.
A compound capable of transferring a hydrogen atom from one compound to another.
A quantity of naturally occurring element added to a minute amount of pure isotope, especially a radioactive one, to facilitate the chemical handling of the isotope.
An individual that carries, but does not express, a gene for a particular recessive trait, yet when mated with another carrier, can produce offspring that do.
A person, animal, or plant that serves as a host for a pathogen and can transmit it to others, but is immune to it. Mosquitoes are carriers of malaria.
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. See more at recessive.
the mathematical operation of replacing every elementary particle by its antiparticle. Symbol: C. charge conjugation A reversal of the sign of the charge, the magnetic moment, and other internal quantum numbers of every particle in the system to which it is applied, effectively turning every particle into its antiparticle. In the mathematics of quantum mechanics, […]
- Charge-coupled device
a semiconductor chip with a grid of light-sensitive elements, used for converting light images, as in a television camera, into electrical signals. Abbreviation: CCD. noun (computing) an electronic device, used in imaging and signal processing, in which information is represented as packets of electric charge that are stored in an array of tiny closely spaced […]
- Charge d’affaires
Also called chargé d’affaires ad interim. an official placed in charge of diplomatic business during the temporary absence of the ambassador or minister. an envoy to a state to which a diplomat of higher grade is not sent. noun (pl) chargés d’affaires (ˈʃɑːʒeɪ; -ʒeɪz; French) (ʃarʒe) the temporary head of a diplomatic mission in the […]
the measure of electrical charge per unit area of a surface or per unit volume of a body or medium. noun the electric charge per unit volume of a medium or body or per unit area of a surface charge density The electric charge per unit area or per unit volume of a body or […]