adj. having caterpillar treads or tracks on the wheels; as, a caterpillar-tracked earthmover. Syn. -- caterpillar. [ WordNet 1.5 ]
adj. having caterpillar treads on the rear and wheels in front; as, half-track armored vehicles. Syn. -- half-track. [ WordNet 1.5 ]
n. 1. One who, or that which, tracks or pursues, as a man or dog that follows game. [ 1913 Webster ]
And of the trackers of the deer Scarce half the lessening pack was near. Sir W. Scott. [ 1913 Webster ]
2. (Mus.) In the organ, a light strip of wood connecting (in path) a key and a pallet, to communicate motion by pulling. [ 1913 Webster ]