• Hardening by jets of water
    Hardening by jets of water
  • WordNet 3.6
    • v harden cause to accept or become hardened to; habituate "He was inured to the cold"
    • v harden make fit "This trip will season even the hardiest traveller"
    • v harden harden by reheating and cooling in oil "temper steel"
    • v harden become hard or harder "The wax hardened"
    • v harden make hard or harder "The cold hardened the butter"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: When a porcupine is born, its quills are soft and mostly white, but harden within hours
    • Harden To accustom by labor or suffering to endure with constancy; to strengthen; to stiffen; to inure; also, to confirm in wickedness or shame; to make unimpressionable. "Harden not your heart.""I would harden myself in sorrow."
    • Harden To become confirmed or strengthened, in either a good or a bad sense. "They, hardened more by what might most reclaim."
    • Harden To become hard or harder; to acquire solidity, or more compactness; as, mortar hardens by drying. "The deliberate judgment of those who knew him [A. Lincoln] has hardened into tradition."
    • Harden To make hard or harder; to make firm or compact; to indurate; as, to harden clay or iron.
    • ***
Century Dictionary and Cyclopedia
    • harden To make hard or more hard in substance or texture; make firm or compact; indurate: as, to harden steel, clay, or tallow; to harden the hands or muscles by toil.
    • harden To dry (clothes) by airing.
    • harden To make hard or harder in feeling; strengthen or confirm with respect to any element of character; inure; toughen; especially, to make indifferent, unfeeling, obstinate, wicked, etc.
    • harden Synonyms To accustom, discipline, train, toughen, habituate, steel, brace, nerve.
    • harden To become hard or more hard; acquire solidity or compactness: as, mortar hardens in drying.
    • harden To become inured or toughened; especially, to become unfeeling.
    • harden To rise in price; grow dear: as, the market hardens.
    • harden Of hards or inferior flax.
    • n harden Hards or inferior flax.
    • n harden A cloth of coarse fiber and texture, made from hards.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Harden to make hard or harder: to make firm: to strengthen: to confirm in wickedness: to make insensible
    • ***


  • Edwin Hubbel Chapin
    “Tribulation will not hurt you, unless as it too often does; it hardens you and makes you sour, narrow and skeptical.”
  • James Thurber
    “With sixty staring me in the face, I have developed inflammation of the sentence structure and definite hardening of the paragraphs.”
  • Edmund Burke
    “A people who are still, as it were, but in the gristle, and not yet hardened into the bone of manhood.”
  • Edward G. Bulwer-Lytton
    “Anger ventilated often hurries towards forgiveness; anger concealed often hardens into revenge.”
  • Johann Wolfgang Von Goethe
    “Human beings, by change, renew, rejuvenate ourselves; otherwise we harden.”
  • Antoine Rivarol
    “Gold like the sun, which melts wax, but hardens clay, expands great souls.”


Webster's Revised Unabridged Dictionary
OE. hardnen, hardenen,
Chambers's Twentieth Century Dictionary
A.S. heard; Dut. hard, Ger. hart, Goth. hardus; allied to Gr. kratys, strong.


In literature:

For there was something that hardened too quickly in Rodan.
"The Planet Strappers" by Raymond Zinke Gallun
He planted himself before the mirror and, doubling up either arm, felt the well-hardened muscles.
"The Varmint" by Owen Johnson
Our chief is a hardened sinner.
"The Goose Man" by Jacob Wassermann
It betokened a storm, and the most hardened hunters and scouts were glad of shelter when the great winds and rains came.
"The Keepers of the Trail" by Joseph A. Altsheler
When we get hardened we shall love each other no longer.
"Vagabondia" by Frances Hodgson Burnett
She had a sort of sense that she would go on somehow, if only she hardened her heart.
"The Creators" by May Sinclair
Continue with jelly and marshmallows till the mold is full, then put away to harden.
"Armour's Monthly Cook Book, Volume 2, No. 12, October 1913" by Various
Let it harden a little before serving.
"The Suffrage Cook Book"
This hardening of the skin has brought about some interesting changes in the body of the turtle.
"The Log of the Sun" by William Beebe
But it hardened me up, made a man of me; perhaps it hardened me too much.
"Jim Spurling, Fisherman" by Albert Walter Tolman

In poetry:

He listen'd to the tempter's voice
The thought it made him start.
His head was hot, and wretchedness
Had hardened now his heart.
"Jaspar" by Robert Southey
What the leaves are to the forest,
With light and air for food,
Ere their sweet and tender juices
Have been hardened into wood,--
"Children. (Birds Of Passage. Flight The First)" by Henry Wadsworth Longfellow
"Oppressor of creation fair!
Apostate Spirits' harden'd tool!
Scorner of God! Scourge of the poor!
The measure of thy cup is full.
"The Wild Huntsman" by Sir Walter Scott
"Of all the knights, the knight most fair,
From Yarrow to the Tyne,"
Soft sigh'd the maid, "is Harden's heir,
But ne'er can he be mine;
"The Reiver's Wedding" by Sir Walter Scott
An honest man thou lov'd, and thou
Wert honest to thy bosom's core,
As harden'd hand, and sweated brow,
A true, tho' silent witness bore.
"Robert Burns" by Thomas Frederick Young
"Warn Wat o' Harden, and his sons,
Wi' them will Borthwick water ride;
Warn Gaudilands, and Allanhaugh,
And Gilmanscleugh, and Commonside.
"Jamie Telfer" by Andrew Lang

In news:

It's best to remove glue before it hardens, but sometimes that's not possible.
The pallet and the base body of the vise are made from a single block of hardened stainless steel to provide stability and to safely absorb the changing forces exercised by chip cutting.
A harden vase with flowers by Jo Lee Tucker.
And of all the hardened Beltway competitors at the St Albans Tennis Club, from Jack Valenti to Vernon Jordan to Strobe Talbott, not one is more famous for his flat-out desire to win than the middle-aged man on court No.
Some of the most hardened criminals at Sing Sing Prison are learning to replace their destructive behaviors with the help of music.
Hip Hop/Rap Ryan Querbach Philadelphia-hailing rapper Privaledge, who is known more locally for his affiliation with Oklahoma City Thunder superstars Kevin Durant and James Harden, released his new mixtape, JoeWorld, last week.
New Test Method for Analysis of Water- Soluble Nitrite in Hardened Concrete.
The company says a recent demonstration using Carpenter 465 hardened to 50 to 52 HRc highlights the T-Rex spindle 's capabilities.
Complicated strain path that introduces strain hardening and therefore increases the material's strength.
Kevin Durant, Russell Westbrook and James Harden's Olympic run should end Sunday morning with the gold-medal game in London.
Sixth Man of the Year Award for James Harden.
James Harden off to a thunderous start with Houston.
Generally, traffic cameras are hardened with an exterior shell that makes it extremely difficult to vandalize the camera inside.
A report published today in Britain's Sunday Times says that the ability of Iran to move much of its nuclear program into hardened mountainside bunkers has already rendered it invulnerable to conventional air attack.
COMMENTARY — Just when the question of James Harden threatened to hang over the Oklahoma City Thunder season, Sam Presti answered it.

In science:

Throughout the accretion phase, there is gradual spectral hardening of all the neutrino species that is increased sharply as an explosion occurs, reversing the flow of infalling matter and beginning the cooling phase during which the spectra soften again.
Astrophysical Neutrino Telescopes
This more extended X-ray brightening involved a significant fraction of the warm stellar surface, but only a modest spectral hardening.
Soft Gamma Repeaters and Anomalous X-ray Pulsars: Magnetar Candidates
Volonteri, Haardt & Madau (2003) thoroughly studied this scenario including a number of physical ingredients such as gas accretion, hardening of the IMBH binary and triple interactions.
The First Cosmic Structures and their Effects
In their model, the full reionization at z ≈ 3 is due to a hardening of the background radiation rather than QSO activity.
The First Cosmic Structures and their Effects
In it was shown that adding such an intrinsic transverse momentum would harden the QT distribution of the integrand in (12) for small QT which in turn lowers the cross-section for central exclusive Higgs production by a factor 2 (for a Gaussian intrinsic transverse momentum with hk2 ⊥ i = 2 GeV2 ).
Diffractive Higgs production: theory