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Dictionary

rig•or•ous

Pronunciation: (rig'ur-us), [key]
—adj.
1. characterized by rigor; rigidly severe or harsh, as people, rules, or discipline: rigorous laws.
2. severely exact or accurate; precise: rigorous research.
3. (of weather or climate) uncomfortably severe or harsh; extremely inclement.
4. Logic, Math.logically valid.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

rigor mortis

rigour

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