<p><strong>Noun</strong></p><ul><li>a person or thing that carries.</li><li>an employee of the post office who carries mail.</li><li>a person who delivers newspapers, magazines, etc., on a particular route.</li><li>Transportation: an individual or company, as a railroad or steamship line, engaged in transporting passengers or goods for profit.</li><li>common carrier.</li><li>Insurance: a company that acts or functions as an underwriter or insurer.</li><li>a frame, usually of metal, attached to a vehicle for carrying skis, luggage, etc., as on top of an automobile or station wagon; rack.</li><li>aircraft carrier.</li><li>Immunology: an individual harboring specific pathogenic organisms who, though often immune to the agent harbored, may transmit the disease to others.</li><li>Genetics: an individual possessing an unexpressed, recessive trait; the bearer of a defective gene.</li><li>Radio: the wave whose amplitude, frequency, or phase is to be varied or modulated to transmit a signal.</li><li>Machinery: a mechanism by which something is carried or moved.</li><li>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.</li><li>Physics: any of the mobile electrons or holes in a metal or semiconductor that enable it to conduct electrical charge.</li><li>Physical Chemistry: a usually inactive substance that acts as a vehicle for an active substance.</li><li>carrier pigeon.</li><li>Painting: base 1 (def 16b).</li></ul>