Definition of carrier
2 a : an individual or organization engaged in transporting passengers or goods for hire b : a transportation line carrying mail between post offices c : a postal employee who delivers or collects mail d : one that delivers newspapers e : an entity (as a hole or an electron) capable of carrying an electric charge
3 a : a container for carrying b : a device or machine that carries : conveyor
4 : aircraft carrier
5 a : a bearer and transmitter of a causative agent of an infectious disease; especially : one who carries the causative agent of a disease systemically but is asymptomatic or immune to it b : an individual (as one heterozygous for a recessive trait) having a specified gene that is not expressed or only weakly expressed in its phenotype
6 a : a usually inactive accessory substance : vehicle <a carrier for a drug or an insecticide> b : a substance (as a catalyst) by whose agency some element or group is transferred from one compound to another
7 a : an electromagnetic wave or alternating current whose modulations are used as communications signals (as in radio, telephonic, or telegraphic transmissions) b : a telecommunication company
8 : an organization acting as an insurer
Examples of carrier in a sentence
I put the pet carrier in the car.
The airline is the nation's largest carrier.
Mosquitoes can be carriers of malaria.
First Known Use of carrier
CARRIER Defined for Kids
Definition of carrier for Students
1 : a person or thing that carries <a mail carrier>
2 : a person or business that transports passengers or goods or provides a certain service
3 : a person, animal, or plant that carries disease germs without showing symptoms and passes them on to others
Medical Definition of carrier
1a: a person, animal, or plant that harbors and transmits the causative agent of an infectious disease; especially : one who carries the causative agent systemically but is asymptomatic or immune to it <a carrier of typhoid fever>—compare reservoir 2, vector 2b: an individual possessing a specified gene and capable of transmitting it to offspring but not expressing or only weakly expressing its phenotype; especially : one that is heterozygous for a recessive factor
2: a usually inactive substance used in association with an active substance especially for aiding in the application of the active substance: asa: a support for a catalystb: a vehicle serving especially as a diluent (as for an insecticide or a drug)
3: a substance (as a catalyst) by whose agency some element or group is transferred from one compound to another
Legal Definition of carrier
1 : an individual or entity engaged in transporting passengers or goods for hire by land, water, or air; specifically : common carrier
2 : an insurer that assumes the risks of a policy that it issues to a policyholder
Seen and Heard
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