The Collaborative International Dictionary of English v.0.48:
Bull \Bull\, a.
Of or pertaining to a bull; resembling a bull; male; large;
Bull bat (Zool.), the night hawk; -- so called from the
loud noise it makes while feeding on the wing, in the
(a) A stupid fellow.
Bull mackerel (Zool.), the chub mackerel.
Bull pump (Mining), a direct single-acting pumping engine,
in which the steam cylinder is placed above the pump.
Bull snake (Zool.), the pine snake of the United States.
Bull stag, a castrated bull. See Stag.
Bull wheel, a wheel, or drum, on which a rope is wound for
lifting heavy articles, as logs, the tools in well boring,