- thresher, thrasher, threshing machine - a farm machine for separating seeds or grain from the husks and straw
--1 is a kind of farm machine
Derived form: verb thresh3 - thresher, thrasher, thresher shark, fox shark, Alopius vulpinus - large pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed
--2 is a kind of shark
--2 is a member of Alopius, genus Alopius