to dress with ornaments; to adorn; -- said especially of horses.-an old term rather loosely used to designate various dark-colored, heavy igneous rocks, including especially the feldspathic-augitic rocks, basalt, dolerite, amygdaloid, etc., but including also some kinds of diorite. called also trap rock.-of or pertaining to trap rock; as, a trap dike.-a machine or contrivance that shuts suddenly, as with a spring, used for taking game or other animals; as, a trap for foxes.-fig.: a snare; an ambush; a stratagem; any device by which one may be caught unawares.-a wooden instrument shaped somewhat like a shoe, used in the game of trapball. it consists of a pivoted arm on one end of which is placed the ball to be thrown into the air by striking the other end. also, a machine for throwing into the air glass balls, clay pigeons, etc., to be shot at.-the game of trapball.-a bend, sag, or partitioned chamber, in a drain, soil pipe, sewer, etc., arranged so that the liquid contents form a seal which prevents passage of air or gas, but permits the flow of liquids.-a place in a water pipe, pump, etc., where air accumulates for want of an outlet.-a wagon, or other vehicle.-a kind of movable stepladder.-to catch in a trap or traps; as, to trap foxes.-fig.: to insnare; to take by stratagem; to entrap.-to provide with a trap; as, to trap a drain; to trap a sewer pipe. see 4th trap, 5.-to set traps for game; to make a business of trapping game; as, to trap for beaver.