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.

Transportation .

an individual or company, as a railroad or steamship line, engaged in transporting passengers or goods for profit.

common carrier.

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.

aircraft carrier.

Immunology . an individual harboring specific pathogenic organisms who, though often immune to the agent harbored, may transmit the disease to others.

Genetics .

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.

carrier pigeon.

Painting . base 1 ( def. 15b ) .

noun

courier , delivery person , bearer , messenger , transporter , shipper , mail carrier , letter carrier , aircraft carrier , flattop , warship , conveyer , envoy , runner , aircraft , airline , barge , bus , car , emissary , mail , mailman , pigeon , plane , porter , postman , rack , railroad , ship , teamster , toter , train , truck , yoke