- a person or thing that carries, holds, or conveys something；a person or company that undertakes the professional conveyance of goods or people
noun: carrier, plural noun: carriers
- 1. a person or thing that carries, holds, or conveys something water carriers
- 2. a person or company that undertakes the professional conveyance of goods or people Pan Am was the third US carrier to cease operations in 1991
- ▪ a vessel or vehicle for transporting people or things, especially goods in bulk the largest timber carrier ever to dock at a Malaysian port
- ▪ an aircraft carrier aircraft from the carrier Illustrious attacked the Italian fleet
- ▪ a company that provides facilities for conveying telecommunications messages Japan's biggest international telecoms carrier is Singapore Telecom
- 3. a person or animal that transmits a disease-causing organism to others, especially without themselves displaying symptoms the black rat, best known as carrier of bubonic plague
- ▪ a person or other organism that possesses a particular gene, especially as a single copy whose effect is masked by a dominant allele, so that the associated characteristic (such as a hereditary disease) is not displayed but may be passed to offspring the husband and wife may both be carriers of the same recessive gene, with a 25% chance of a diseased child
- 4. a substance used to support or convey another substance such as a pigment, catalyst, or radioactive material.
- ▪ short for charge carrier
- ▪ a molecule that transfers a specified molecule or ion within the body, especially across a cell membrane.