carrier

In medicine, a person is a carrier if they test positive for a pathogen or a genetic defect without showing any symptoms. This person can unwittingly spread the illness to others without ever knowing he or she is the source.

If your job involves carrying things or people, you work as a carrier. If you deliver newspapers, you are a newspaper carrier. If the job is to transport household items or people, your business is as a common carrier, such as a moving company or an airline. But if you deliver aircraft, you are not an aircraft carrier — that would be a large, flat-decked, military ship where planes can land or take off at sea.

Definitions of carrier
  1. noun
    a person or firm in the business of transporting people or goods or messages
    synonyms: common carrier
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    types:
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    line
    a commercial organization serving as a common carrier
    airline, airline business, airway
    a commercial enterprise that provides scheduled flights for passengers
    railroad, railroad line, railway, railway line, railway system
    line that is the commercial organization responsible for operating a system of transportation for trains that pull passengers or freight
    steamship company, steamship line
    a line responsible for the operation of a fleet of steamships
    transit line
    a line providing public transit
    type of:
    business, business concern, business organisation, business organization, concern
    a commercial or industrial enterprise and the people who constitute it
  2. noun
    someone whose employment involves carrying something
    “the bonds were transmitted by carrier
    synonyms: bearer, toter
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    type of:
    traveler, traveller
    a person who changes location
  3. noun
    a man who delivers the mail
    synonyms: letter carrier, mail carrier, mailman, postman
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    type of:
    deliverer, delivery boy, deliveryman
    someone employed to make deliveries
  4. noun
    a boy who delivers newspapers
    synonyms: newsboy
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    type of:
    deliverer, delivery boy, deliveryman
    someone employed to make deliveries
  5. noun
    a large warship that carries planes and has a long flat deck for takeoffs and landings
    synonyms: aircraft carrier, attack aircraft carrier, flattop
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    type of:
    combat ship, war vessel, warship
    a government ship that is available for waging war
  6. noun
    a self-propelled wheeled vehicle designed specifically to carry something
    “refrigerated carriers have revolutionized the grocery business”
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    type of:
    self-propelled vehicle
    a wheeled vehicle that carries in itself a means of propulsion
  7. noun
    a rack attached to a vehicle; for carrying luggage or skis or the like
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    types:
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    bomb rack
    a device on an aircraft for carrying bombs
    luggage carrier
    carrier (as behind a bicycle seat) for luggage
    luggage rack, roof rack
    carrier for holding luggage above the seats of a train or on top of a car
    ski rack
    a carrier for holding skis on top of a vehicle
    type of:
    rack
    framework for holding objects
  8. noun
    an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction
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    type of:
    chemical, chemical substance
    material produced by or used in a reaction involving changes in atoms or molecules
  9. noun
    (genetics) an organism that possesses a recessive gene whose effect is masked by a dominant allele; the associated trait is not apparent but can be passed on to offspring
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    type of:
    being, organism
    a living thing that has (or can develop) the ability to act or function independently
  10. noun
    (medicine) a person (or animal) who has some pathogen to which he is immune but who can pass it on to others
    synonyms: immune carrier
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    examples:
    Typhoid Mary
    United States cook who was an immune carrier of typhoid fever and who infected dozens of people (1870-1938)
    type of:
    transmitter, vector
    any agent (person or animal or microorganism) that carries and transmits a disease
    immune
    a person who is immune to a particular infection
  11. noun
    a radio wave that can be modulated in order to transmit a signal
    synonyms: carrier wave
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    type of:
    radio emission, radio radiation, radio wave
    an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m
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