|
Search over 100 encyclopedias and dictionaries: |
Research categories | Follow us on Twitter |
Research categories
View all topics in the newsView all reference sources at Encyclopedia.com |
|||
threshing
threshing or thrashing, separation of grain from the stalk on which it grows and from the chaff or pod that covers it. The first known method was by striking the reaped ears of grain with a flail. In another early method horses or oxen trod out the grain from stalks spread on a threshing floor. In both cases the straw was raked away and then the mixture of grain and chaff was winnowed, i.e., tossed into or poured through a current of air so that the light chaff was blown away from the heavier grain. In 1784 a Scotsman, Andrew Meikle, devised a threshing machine. Sheaves of grain were fed into a revolving cylinder armed with wooden beaters. Another toothed drum raked away the loose straw and pushed the remaining chaff and grain through a sieve onto a series of rollers that further separated the chaff from the grain in preparation for winnowing. The principle of Meikle's machine has been retained in all threshing machines up to and including the modern self-propelled combines .
|
|
|
Cite this article
"threshing." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "threshing." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1E1-threshin.html "threshing." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-threshin.html |
|
thresh
thresh separate the grain from (corn) by beating, etc. ME. threshen (XII), continuing metathetic alt. of OE. str. vb. þersċan = MLG., MDu. derschen (LG., Du. dorschen), OHG. dreskan (G. dreschen), ON. þreskja, Goth. þriskan, f. Gmc. *þersk- :- IE. *tersk-, repr. in Balto-Sl. by words denoting ‘crackle’, ‘crash’, ‘rattle’.
Hence thresher (-ER1) person or machine that threshes XIV; shark so named from the upper division of its tail with which it lashes an enemy XVII. |
|
|
Cite this article
T. F. HOAD. "thresh." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. T. F. HOAD. "thresh." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O27-thresh.html T. F. HOAD. "thresh." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-thresh.html |
|
thresh
thresh / [unvoicedth]resh/ • v. [tr.] 1. separate grain from (a plant), typically with a flail or by the action of a revolving mechanism: machinery that can reap and thresh corn in the same process | [as n.] (threshing) farm workers started the afternoon's threshing. 2. variant spelling of thrash (in the sense of violent movement). |
|
|
Cite this article
"thresh." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "thresh." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O999-thresh.html "thresh." The Oxford Pocket Dictionary of Current English. 2009. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-thresh.html |
|
thresh
thresh
•afresh, Andhra Pradesh, Bangladesh, crème fraîche, enmesh, flesh, fresh, intermesh, Kesh, Madhya Pradesh, Marrakesh, mesh, nesh, thresh, Uttar Pradesh
•parfleche • horseflesh • gooseflesh
•micromesh • Gilgamesh
•synchromesh
|
|
|
Cite this article
"thresh." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "thresh." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O233-thresh.html "thresh." Oxford Dictionary of Rhymes. 2007. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-thresh.html |
|
|
Search over 100 encyclopedias and dictionaries:
HighBeam™ Research, Inc. © Copyright 2012. All rights reserved.
The Encyclopedia.com advertising network includes:
