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rigour

[rig-er] /ˈrɪg ər/
noun, Chiefly British
1.

rigor

[rig-er] /ˈrɪg ər/
noun
1.
strictness, severity, or harshness, as in dealing with people.
2.
the full or extreme severity of laws, rules, etc.
3.
severity of living conditions; hardship; austerity:
the rigor of wartime existence.
4.
a severe or harsh act, circumstance, etc.
5.
scrupulous or inflexible accuracy or adherence:
the logical rigor of mathematics.
6.
severity of weather or climate or an instance of this:
the rigors of winter.
7.
Pathology. a sudden coldness, as that preceding certain fevers; chill.
8.
Physiology. a state of rigidity in muscle tissues during which they are unable to respond to stimuli due to the coagulation of muscle protein.
9.
Obsolete. stiffness or rigidity.
Origin of rigor
1350-1400
1350-1400; Middle English rigour < Latin rigor stiffness, equivalent to rig(ēre) to be stiff + -or -or1
Synonyms
1. inflexibility, stringency. 4. cruelty.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for rigours

rigor

/ˈraɪɡɔː; ˈrɪɡə/
noun
1.
(med) a sudden feeling of chilliness, often accompanied by shivering: it sometimes precedes a fever
2.
(pathol) (ˈrɪɡə). rigidity of a muscle; muscular cramp
3.
a state of rigidity assumed by some animals in reaction to sudden shock
4.
the inertia assumed by some plants in conditions unfavourable to growth
Word Origin
see rigour

rigour

/ˈrɪɡə/
noun
1.
harsh but just treatment or action
2.
a severe or cruel circumstance; hardship: the rigours of famine
3.
strictness, harshness, or severity of character
4.
strictness in judgment or conduct; rigorism
5.
(maths, logic) logical validity or accuracy
6.
(obsolete) rigidity
Word Origin
C14: from Latin rigor
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 rigours

rigor

n.

late 14c., from Old French rigor "strength, hardness" (13c., Modern French rigueur), from Latin rigorem (nominative rigor) "numbness, stiffness, hardness, firmness; roughness, rudeness," from rigere "be stiff" (see rigid).

rigour

n.

chiefly British English spelling of rigor (q.v.); for spelling, see -or.

Online Etymology Dictionary, © 2010 Douglas Harper
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rigours in Medicine

rigor rig·or (rĭg'ər)
n.

  1. See rigidity.

  2. Shivering or trembling, as caused by a chill.

  3. A state of rigidity in living tissues or organs that prevents response to stimuli.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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