THRESHER
thresher
Noun
- Anything or anyone that threshes.
 - A now-obsolete hand tool for threshing, also called a flail.
 - A modern farm machine for threshing grain, now a part of combine harvesters rather than a separate implement.
 - Any of several large pelagic sharks of the genus Alopias, which have a very long tail; more commonly called thresher sharks.
 
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