rigor

Rigor is something strict, severe or demanding.

(noun)

See rigor in Webster's New World College Dictionary

noun

harshness or severity; specif.,
1. strictness or inflexibility: the rigor of martial law
2. extreme hardship or difficulty: the rigors of life
3. inclemency, as of weather
exactness in precision or accuracy; exactitude
a severe, harsh, or oppressive act, etc.
stiffness; rigidity; specif., a condition of rigidity in body tissues or organs, in which there is no response to stimuli
a shivering or trembling, as in the chill preceding a fever

Origin: ME < MFr rigueur < L rigor < rigere: see rigid

Brit. sp. rigour

See rigor in American Heritage Dictionary 4

noun

Strictness or severity, as in temperament, action, or judgment.
A harsh or trying circumstance; hardship. See Synonyms at difficulty.
A harsh or cruel act.
Medicine Shivering or trembling, as caused by a chill.
Physiology A state of rigidity in living tissues or organs that prevents response to stimuli.
Obsolete Stiffness or rigidity.

Origin:

Origin: Middle English rigour

Origin: , from Old French

Origin: , from Latin rigor

Origin: , from rigēre, to be stiff; see reig- in Indo-European roots

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