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thresher

[thresh-er] /ˈθrɛʃ ər/
noun
1.
a person or thing that threshes.
2.
Also, thrasher. Also called thresher shark. a large shark of the genus Alopias, especially A. vulpinus, which threshes the water with its long tail to drive together the small fish on which it feeds.
Origin
1350-1400
1350-1400; Middle English thressher. See thresh, -er1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for thresher
  • Chickens roost under the shade of a rusted-out thresher-binder.
  • Scientists suspected that the common thresher shark used its long tail to capture food-and now they have video to prove it.
  • During the spring, the common thresher is the primary target of this fishery in the northern area.
British Dictionary definitions for thresher

thresher

/ˈθrɛʃə/
noun
1.
a person who threshes
2.
short for threshing machine
3.
Also called thrasher, thresher shark. any of various large sharks of the genus Alopias, esp A. vulpinus, occurring in tropical and temperate seas: family Alopiidae. They have a very long whiplike tail with which they are thought to round up the small fish on which they feed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for thresher
n.

late 14c., agent noun from thresh. The thresher shark (c.1600) so called for its long upper tail shape, which resembles a threshing tool.

Online Etymology Dictionary, © 2010 Douglas Harper
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Encyclopedia Article for thresher

farm machine for separating wheat, peas, soybeans, and other small grain and seed crops from their chaff and straw. Primitive threshing methods involved beating by hand with a flail or trampling by animal hooves. An early threshing machine, patented in 1837 by Hiram A. and John A. Pitts of Winthrop, Maine, U.S., was operated by horsepower. Large stationary threshers powered by steam engines or tractors, common in the early part of the 20th century, were part of harvesting systems in which the grain was cut either by binders or by headers. In most farm regions, threshers, binders, and headers were all superseded by combines during the 20th century.

Learn more about thresher with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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14
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