(1):

(n.) A machine for picking fibrous materials to pieces so as to loosen and separate the fiber.

(2):

(n.) The piece in a loom which strikes the end of the shuttle, and impels it through the warp.

(3):

(n.) One who, or that which, picks, in any sense, - as, one who uses a pick; one who gathers; a thief; a pick; a pickax; as, a cotton picker.

(4):

(n.) A priming wire for cleaning the vent.