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rigor

American  
[rig-er] / ˈrɪg ər /
especially British, rigour

noun

  1. strictness, severity, or harshness, as in dealing with people.

    Synonyms:
    stringency, inflexibility
  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.

    Synonyms:
    cruelty
  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.


rigor British  
/ ˈraɪɡɔː, ˈrɪɡə /

noun

  1. med a sudden feeling of chilliness, often accompanied by shivering: it sometimes precedes a fever

  2. pathol 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

"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

Usage

What is rigor? Rigor is strictness and inflexibility, as in The military academy was known for its dedication to perfection, discipline, and rigor.Rigor is also hardship or austerity, as in Young soldiers are rarely ready to handle the rigors of war.Rigor can also refer to a strict accuracy, as with scientific experiments.If a teacher is known for their rigor, they are very strict about things like students finishing all their homework and are likely to punish students who don’t follow the rules. A person known for rigor is likely to support punishments for people who misbehave rather than rewards for people who behave.Rigor can also mean a condition that makes life harder, such as living without electricity. When referring to austerity, can mean living without a lot of things that make life pleasant, like takeout food, video games, and traveling.Finally, rigor can mean strict accuracy or precision, as in The report on water pollution was commended for its scientific rigor.In British English, this word is commonly spelled as rigour.The adjective form of rigor is rigorous and it is most often used to mean something is very harsh or full of difficulties, as in It takes years of rigorous training to be an Olympic athlete.Example: We nearly froze as we huddled in the log cabin and suffered through the rigors of the harsh, unforgiving winter.

Etymology

Origin of rigor

1350–1400; Middle English rigour < Latin rigor stiffness, equivalent to rig ( ēre ) to be stiff + -or -or 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“Long-term performance is the result of underwriting rigor, disciplined portfolio construction and careful balance sheet management. After all, private credit is still just credit.”

From The Wall Street Journal

He guided the bureau through the aftermath of the September 11 attacks, shifting focus toward counterterrorism while maintaining its investigative rigor.

From Salon

The inquest was told rigor mortis - the stiffening of the body after death - had set in.

From BBC

The damp climate and the rigors of life on the march were tough for a man in his 60s who had long suffered from crippling gout and could often barely walk.

From The Wall Street Journal

As Americans became heavier and increasingly worried about weight, it became the standard — without any scientific rigor to back it up.

From MarketWatch