One who, or that which, carries or conveys; a messenger.
One who is employed, or makes it his business, to carry goods for others for hire; a porter; a teamster.
That which drives or carries; as: (a) A piece which communicates to an object in a lathe the motion of the face plate; a lathe dog. (b) A spool holder or bobbin holder in a braiding machine. (c) A movable piece in magazine guns which transfers the cartridge to a position from which it can be thrust into the barrel.
A healthy attitude is contagious but don't wait to catch it from others. Be a carrier. Tom Stoppard
If you pick the right people and give them the opportunity to spread their wings and put compensation as a carrier behind it you almost don't have to manage them. Jack Welch
Japan has always regarded the aircraft carrier as one of the most offensive of armaments. Isoroku Yamamoto
My sister learned she was a carrier for a recessive disease, Bloom syndrome, late in one of her pregnancies. I remember the panicked call and the weeks of worry as she and her husband awaited his test results; if he was also a carrier, this meant their daughter had a one in four chance of being born with the disorder. Anne Wojcicki
Knock on wood, but I think we hit the gestational carrier lottery! Giuliana Rancic