Tracker
Pronunciation : Track"er
Part of Speech : n.
Definition : 1. One who, or that which, tracks or pursues, as a man or dog that follows game. And of the trackers of the deer Scarce half the lessening pack was near. Sir W. Scott.
2. (Mus.)
Defn: In the organ, a light strip of wood connecting (in path) a key and a pallet, to communicate motion by pulling.
Source : Webster's Unabridged Dictionary, 1913