carrier Definition

1. A person or thing that carries.
2. A person or firm that transports goods.

Thesaurus: messenger, delivery person, bearer, runner, porter, transmitter, transporter.
3. An individual who is infected by a disease-causing micro-organism, and who may remain without symptoms but is still capable of transmitting that organism to other individuals.
4. genetics.
An individual who carries a gene for a particular disorder without displaying signs or symptoms of that disorder, and who may pass on the gene to his or her offspring.
5. A vector.
6. radio.
A carrier wave.
7. physics.
A charge carrier, such as an electron.
8. A non-radioactive material mixed with, and chemically identical to, a radioactive compound.
9. A carrier bag.