• WordNet 3.6
    • n rigor excessive sternness "severity of character","the harshness of his punishment was inhuman","the rigors of boot camp"
    • n rigor something hard to endure "the asperity of northern winters"
    • n rigor the quality of being valid and rigorous
    • ***
Webster's Revised Unabridged Dictionary
    • Rigor A sense of chilliness, with contraction of the skin; a convulsive shuddering or tremor, as in the chill preceding a fever.
    • Rigor Exactness without allowance, deviation, or indulgence; strictness; as, the rigor of criticism; to execute a law with rigor; to enforce moral duties with rigor ; -- opposed to lenity.
    • Rigor Rigidity; stiffness.
    • Rigor (Med) See 1st Rigor, 2.
    • Rigor Severity of climate or season; inclemency; as, the rigor of the storm; the rigors of winter.
    • Rigor Severity of life; austerity; voluntary submission to pain, abstinence, or mortification. "The prince lived in this convent with all the rigor and austerity of a capuchin."
    • Rigor Stiffness of opinion or temper; rugged sternness; hardness; relentless severity; hard-heartedness; cruelty. "All his rigor is turned to grief and pity.""If I shall be condemn'd
      Upon surmises, . . . I tell you
      'T is rigor and not law."
    • Rigor The becoming stiff or rigid; the state of being rigid; rigidity; stiffness; hardness. "The rest his look
      Bound with Gorgonian rigor not to move."
    • Rigor Violence; force; fury. "Whose raging rigor neither steel nor brass could stay."
    • ***
Century Dictionary and Cyclopedia
    • n rigor The state or property of being stiff or rigid; stiffness; rigidity; rigidness.
    • n rigor The property of not bending or yielding; inflexibility; stiffness; hence, strictness without allowance, latitude, or indulgence; exactingness: as, to execute a law with rigor; to criticize with rigor.
    • n rigor Severity of life; austerity.
    • n rigor Sternness; harshness; cruelty.
    • n rigor Sharpness; violence; asperity; inclemency: as, the rigor of winter.
    • n rigor That which is harsh or severe; especially, an act of injustice, oppression, or cruelty.
    • n rigor (rī′ gor). [NL.] In pathology, a sudden coldness, attended by shivering more or less marked, which ushers in many diseases, especially fevers and acute inflammation: commonly called chill. It is also produced by nervous disturbance or shock. [In this sense always spelled rigor.]
    • n rigor Synonyms and Rigor, Rigidity, Rigidness, inclemency. There is a marked tendency to use rigidity of physical stiffness. Rigidity seems to take also the passive, while rigor takes the active, of the moral senses; as, rigidity of manner, of mood; rigor in the enforcement of laws. Rigidness perhaps holds a middle position, or inclines to be synonymous with rigidity. Rigor applies also to severity of cold. See austere.
    • ***
Chambers's Twentieth Century Dictionary
    • n Rigor rī′gur the same as Rigour:
    • n Rigor rī′gur (med.) a sense of chilliness with contraction of the skin, a preliminary symptom of many diseases
    • ***


  • Paul De Man
    Paul De Man
    “Literature... is condemned (or privileged) to be forever the most rigorous and, consequently, the most reliable of terms in which man names and transforms himself.”
  • George Washington
    “Lenience will operate with greater force, in some instances than rigor. It is therefore my first wish to have all of my conduct distinguished by it.”
  • William Blake
    “You smile with pomp and rigor, you talk of benevolence and virtue; I act with benevolence and virtue and get murdered time after time.”
  • Mignon McLaughlin
    “For the happiest life, days should be rigorously planned, nights left open to chance.”
  • Ezra Pound
    “Gloom and solemnity are entirely out of place in even the most rigorous study of an art originally intended to make glad the heart of man.”
  • Alain French
    Alain French
    “One must be truthful with oneself about one's own motives, especially if one is to survive in the world. It takes rigor, and it takes courage.”


Webster's Revised Unabridged Dictionary
OE. rigour, OF. rigour, F. rigueur, from L. rigor, fr. rigere, to be stiff. See Rigid


In literature:

Organisms will, for example, learn to meet very rigorous conditions if slowly introduced, and not permanent.
"The Birth-Time of the World and Other Scientific Essays" by J. (John) Joly
Of rigorous honesty, and careless of appearances, he lived for a considerable time as an economical private individual.
"Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson" by Thomas Jefferson
Under no less rigorous exactions can due military subordination be maintained.
"The Life of Nelson, Vol. I (of 2)" by A. T. (Alfred Thayer) Mahan
For one season at least the settlers will face the rigor of this Northern Clime.
"The Romantic Settlement of Lord Selkirk's Colonists" by George Bryce
Every garment was subjected to a rigorous search.
"Sixteen Months in Four German Prisons" by Henry Charles Mahoney
The junior servants were rigorously confined to salaries, on which they were unable to subsist according to their rank.
"The Works of the Right Honourable Edmund Burke, Vol. VIII. (of 12)" by Edmund Burke
But the cause of most extensive disquiet was the rigorous commercial system pursued by Great Britain.
"The Life of George Washington, Vol. 4 (of 5)" by John Marshall
The statement was not true in any strict and rigorous sense of the words.
"Modern Skepticism: A Journey Through the Land of Doubt and Back Again" by Joseph Barker
Hard as is the life of the Eskimo, his end is usually as rigorous.
"The North Pole" by Robert E. Peary
In tetanic spasm the limbs when bent return to their former position; not so in rigor mortis.
"Aids to Forensic Medicine and Toxicology" by W. G. Aitchison Robertson

In poetry:

We, in some unknown Power's employ,
Move on a rigorous line;
Can neither, when we will, enjoy,
Nor, when we will, resign.
"Stanzas In Memory Of The Author Of 'Obermann'" by Matthew Arnold
If placed beneath the northern pole,
Though winter reigns with rigor there;
His gracious beams would cheer my soul,
And make a spring throughout the year.
"The Believer's Safety (II)" by John Newton
So drooped and died her home-blown rose of bliss
In the chill rigor of a discipline
That turned her fond lips from her children's kiss,
And made her joy of motherhood a sin.
"The Two Elizabeths" by John Greenleaf Whittier
Baring his long silver locks to the breeze,
First for a moment he drops on his knees;
Then with a rigor that few could excel,
Answers the welcome bidding,
Ring, ring the bell.
"Ring the Bell, Watchman!" by Henry Clay Work
She sees the worm that my youth's bloom decays,
She sees my spring-time wasted as it flees;
And, marvelling at the rigor that gainsays
The heart's sweet impulse, my reward decrees.
"The Conflict" by Friedrich von Schiller
Madam, I go. Our holy Church has healed
Far deadlier heart-wounds than a love-sick boy's.
Be of good cheer, the Prince shall live to bless
The father's rigor who kept pure of blot
A 'scutcheon more unsullied than the sun.
"The Dance To Death. Act II" by Emma Lazarus

In news:

The case for the Book of Mormon as an authentic ancient text should only be supported by rigorous scholarship and not by wishful thinking and the misuse of scholarly data.
Those who pass these rigorous tests will become ETCP Certified.
Maryland women's basketball facing rigorous 18-game ACC schedule.
"The board's move to more rigorous standards will continue to present accreditation challenges for many of the commonwealth's schools," Board of Education President David M Foster said in a news release.
Scientists say the results still need to be confirmed with more rigorous studies.
IOM Guidelines for Use of Omics Tests in Clinical Trials Add Rigor to Quality Assurance .
SAN FRANCISCO—At PCMag, we subject every tech product we review to rigorous testing.
Others didn't perform well in Consumer Reports' rigorous testing.
The rigors of the campaign are still fresh, but for newly elected House members and senators, the hard part is just beginning.
The rigors of the campaign are still fresh, and newly elected House members and senators are exhausted.
Reviewer of Dining Establishments (PRODE), you must every two years pass a rigorous and continually updated examination.
TeamRankings.com, the statistically rigorous Web site the trio founded in 2005, offers bracketeers paid access to a world of predictive data through its BracketBrains.com spin-off.
Hillsboro plans to lobby the Legislature for 'rigorous' look at west side bypass.
The board certification comes after the nurses successfully completed a rigorous exam.
Is convinced that the academic rigor and discipline at his high school more than adequately prepared him for college and career.

In science:

Rigorous results have been obtained also in four dimensions based on an exact renormalization group (RG) technique .
Critical behavior of n-vector model with quenched randomness
Theory of Phase Transitions: Rigorous results.
Occupation Time Fluctuations in Branching Systems
Such processes can be contructed rigorously using, for instance, orthonormal wavelet bases .
A multifractal random walk
Let us now try to perform a rigorous proof of Conjecture 4.1.
Fluctuations of the free energy in the REM and the p-spin SK models
Talagrand, Rigorous low temperature results for mean field p-spin interaction models.
Fluctuations of the free energy in the REM and the p-spin SK models