Dictionary
thresh•er
Pronunciation: (thresh'ur), [key]—
n.
1. a person or thing that threshes.
2. Also,thrasher.Also called
thresh'er shark". a large shark of the genus
Alopias, esp.
A. vulpinus, which threshes the water with its long tail to drive together the small fish on which it feeds.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.