carrier wave

carrier

[kar-ee-er]
noun
1.
a person or thing that carries.
2.
an employee of the post office who carries mail.
3.
a person who delivers newspapers, magazines, etc., on a particular route.
4.
Transportation.
a.
an individual or company, as a railroad or steamship line, engaged in transporting passengers or goods for profit.
5.
Insurance. a company that acts or functions as an underwriter or insurer.
6.
a frame, usually of metal, attached to a vehicle for carrying skis, luggage, etc., as on top of an automobile or station wagon; rack.
8.
Immunology. an individual harboring specific pathogenic organisms who, though often immune to the agent harbored, may transmit the disease to others.
9.
Genetics.
a.
an individual possessing an unexpressed, recessive trait.
b.
the bearer of a defective gene.
10.
Also called carrier wave. Radio. the wave whose amplitude, frequency, or phase is to be varied or modulated to transmit a signal.
11.
Machinery. a mechanism by which something is carried or moved.
12.
Chemistry. a catalytic agent that brings about a transfer of an element or group of atoms from one compound to another.
13.
Also called charge carrier. Physics. any of the mobile electrons or holes in a metal or semiconductor that enable it to conduct electrical charge.
14.
Physical Chemistry. a usually inactive substance that acts as a vehicle for an active substance.
16.
Painting. base1 ( def 15b ).

Origin:
1350–1400; Middle English; see carry, -er1

intercarrier, noun
noncarrier, noun
supercarrier, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
carrier (ˈkærɪə)
 
n
1.  a person, thing, or organization employed to carry goods, passengers, etc
2.  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
3.  pathol another name for vector
4.  pathol a person or animal that, without having any symptoms of a disease, is capable of transmitting it to others
5.  physics Also called: charge carrier an electron, ion, or hole that carries the charge in a conductor or semiconductor
6.  short for carrier wave
7.  chem
 a.  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
8.  See aircraft carrier
9.  See also carrier pigeon 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
10.  a US name for roof rack

Carrier (ˈkærɪə)
 
n
a member of an Athapaskan Native North American people of British Columbia

carrier wave
 
n
radio amplitude modulation See frequency modulation a wave of fixed amplitude and frequency that is modulated in amplitude, frequency, or phase in order to carry a signal in radio transmission, etc

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

carrier car·ri·er (kār'ē-ər)
n.

  1. 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.

  2. A compound capable of transferring a hydrogen atom from one compound to another.

  3. 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.

  4. 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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
carrier   (kār'ē-ər)  Pronunciation Key 
  1. 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.

  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. See more at recessive.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang Dictionary

carrier definition


  1. n.
    a narcotics seller or transporter. (Drugs. See also courier.) : The carrier has the most dangerous job of all.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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Encyclopedia Britannica
Encyclopedia

carrier wave

in electronics, the unmodulated single-frequency electromagnetic wave that carries the desired information-i.e., is modulated by the information. See modulation (electronics).

Learn more about carrier wave with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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