Pick"er (?), n. [From Pick.] 1. 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. "Pickers and stealers." Shak.

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

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

4. (Ordnance) A priming wire for cleaning the vent.