Definition of pickers:
(n) :
Agent noun of pick; one who picks.
(n) :
A worker responsible for picking or retrieving ordered items, etc.
(n) :
(computing, graphical user interface) Any user interface control that selects something.
(n) :
(slang, gold panning) A fragment of gold smaller than a nugget but large enough to be picked up.
(n) :
(engineering) A machine for picking fibrous materials to pieces so as to loosen and separate the fibre.
(n) :
(weaving) The piece in a loom that strikes the end of the shuttle and impels it through the warp.