Try Our Apps


90s Slang You Should Know


[rig-er] /ˈrɪg ər/
strictness, severity, or harshness, as in dealing with people.
the full or extreme severity of laws, rules, etc.
severity of living conditions; hardship; austerity:
the rigor of wartime existence.
a severe or harsh act, circumstance, etc.
scrupulous or inflexible accuracy or adherence:
the logical rigor of mathematics.
severity of weather or climate or an instance of this:
the rigors of winter.
Pathology. a sudden coldness, as that preceding certain fevers; chill.
Physiology. a state of rigidity in muscle tissues during which they are unable to respond to stimuli due to the coagulation of muscle protein.
Obsolete. stiffness or rigidity.
Also, especially British, rigour.
Origin of rigor
1350-1400; Middle English rigour < Latin rigor stiffness, equivalent to rig(ēre) to be stiff + -or -or1
1. inflexibility, stringency. 4. cruelty. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for rigor
Contemporary Examples
Historical Examples
  • The whole code of his injunctions was subsequently disclosed to the family in all its extent and rigor.

    Going To Maynooth William Carleton
  • The mine owner did not speak, but the rigor of his eyes did not relax.

    Brand Blotters William MacLeod Raine
  • The Baptist had been a scrupulous observer of the law; his strict asceticism vied with the rigor of Pharisaic profession.

    Jesus the Christ James Edward Talmage
  • "rigor mortis," Doc Candle diagnosed, with a wink to Collins.

    The Last Place on Earth James Judson Harmon
  • The flesh had become cold and rigor mortis was beginning to set in.

British Dictionary definitions for rigor


/ˈraɪɡɔː; ˈrɪɡə/
(med) a sudden feeling of chilliness, often accompanied by shivering: it sometimes precedes a fever
(pathol) (ˈrɪɡə). rigidity of a muscle; muscular cramp
a state of rigidity assumed by some animals in reaction to sudden shock
the inertia assumed by some plants in conditions unfavourable to growth
Word Origin
see rigour
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
Cite This Source
Word Origin and History for rigor

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).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
rigor in Medicine

rigor rig·or (rĭg'ər)

  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.
Cite This Source

Word of the Day

Difficulty index for rigor

Some English speakers likely know this word

Word Value for rigor

Scrabble Words With Friends

Nearby words for rigor