• WordNet 3.6
    • adj rare not widely distributed "rare herbs","rare patches of green in the desert"
    • adj rare not widely known; especially valued for its uncommonness "a rare word","rare books"
    • adj rare (of meat) cooked a short time; still red inside "rare roast beef"
    • adj rare recurring only at long intervals "a rare appearance","total eclipses are rare events"
    • adj rare marked by an uncommon quality; especially superlative or extreme of its kind "what is so rare as a day in June"-J.R.Lowell","a rare skill","an uncommon sense of humor","she was kind to an uncommon degree"
    • adj rare having low density "rare gasses","lightheaded from the rarefied mountain air"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Pearls are rarely found in North American oysters
    • Rare Characterized by wide separation of parts; of loose texture; not thick or dense; thin; as, a rare atmosphere at high elevations. "Water is nineteen times lighter, and by consequence nineteen times rarer , than gold.""A perfect union of wit and judgment is one of the rarest things in the world.""When any particular piece of money grew very scarce , it was often recoined by a succeeding emperor."
    • a Rare râr Early. "Rude mechanicals that rare and late
      Work in the market place."
    • a Rare Nearly raw; partially cooked; not thoroughly cooked; underdone; as, rare beef or mutton.☞ This word is in common use in the United States, but in England its synonym underdone is preferred. "New-laid eggs, which Baucis' busy care
      Turned by a gentle fire, and roasted rare ."
    • Rare Not frequent; seldom met with or occurring; unusual; as, a rare event.
    • Rare Of an uncommon nature; unusually excellent; valuable to a degree seldom found. "Rare work, all filled with terror and delight.""Above the rest I judge one beauty rare ."
    • Rare Thinly scattered; dispersed. "Those rare and solitary, these in flocks."
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Diamond is the hardest naturally occurring substance, and is also one of the most valuable natural substances. Diamonds are crystals formed almost entirely of carbon. Because of its hardness, the diamond is the most enduring of all gemstones. They are among the most costly jewels in the world, partly because they are rare, Only four important diamond fields have been found in Africa, South America, India, and the Soviet Union.
    • rare Thin; porous; not dense; of slight consistence; rarefied; having relatively little matter in a given volume: as, a rare substance; the rare atmosphere of high mountains.
    • rare Thinly scattered; coming or occurring at wide intervals; sparse; dispersed.
    • rare Very uncommon or infrequent; seldom occurring or to be found; hardly ever met with.
    • rare Hence Remarkable from uncommonness; especially, uncommonly good, excellent, valuable, fine, or the like; of an excellence seldom met with.
    • rare Synonyms Rare, Scarce, infrequent, unusual. Rare implies that only few of the kind exist: as, perfect diamonds are rare. Scarce properly implies a previous or usual condition of greater abundance. Rare, means that there are much fewer of a kind to be found than may be found where scarce would apply.
    • rare Singular, extraordinary, incomparable, choice.
    • rare Not thoroughly cooked; partly cooked; underdone: applied to meat: as, rare beef; a rare chop.
    • rare Early.
    • rare A dialectal form of rear.
    • rare An obsolete form of roar.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: Parrots, most famous of all talking birds, rarely acquire a vocabulary of more than twenty words, however Tymhoney Greys and African Greys have been know to carry vocabularies in excess of 100 words.
    • adj Rare rār (comp. Rā′rer; superl. Rā′rest) thin: not dense, as rarefied atmosphere: sparse: seldom met with: uncommon: excellent: especially good: extraordinary
    • v.i Rare to become less dense:—pa.t. and pa.p. rar′efied
    • adj Rare rār underdone—of meat.
    • ***


  • Jean De La Fontaine
    “Rare as is true love, true friendship is rarer.”
  • Source Unknown
    Source Unknown
    “Friends are those rare people who ask how you are and then wait to hear the answer.”
  • R. W. Dale
    R. W. Dale
    “We ask God to forgive us for our evil thoughts and evil temper, but rarely, if ever ask Him to forgive us for our sadness.”
  • Basta
    “Man loves little and often. Woman much and rarely.”
  • (Decimus Junius Juvenalis) Juvenal
    (Decimus Junius Juvenalis) Juvenal
    “So rare is the union of beauty with modesty.”
  • Baruch (Benedict de) Spinoza
    “All excellent things are as difficult as they are rare.”


As rare as hen's teeth - (USA) Something that is rare as hen's teeth is very rare or non-existent.


Webster's Revised Unabridged Dictionary
Cf. AS. hrēr, or E. rare, early. √18
Chambers's Twentieth Century Dictionary
A.S. hrēr.


In literature:

At church only Caroline had the chance of seeing him, and there she rarely looked at him.
"Shirley" by Charlotte Brontë
Adultery is extremely rare among so numerous a people.
"Woman under socialism" by August Bebel
It occurs rarely; but once it appears, attracts attention.
"The North American Slime-Moulds" by Thomas H. (Thomas Huston) MacBride
Now rare in the United States.
"What Bird is That?" by Frank M. Chapman
She drew her eyelids together, a rare sign of perturbation.
"Ancestors" by Gertrude Atherton
It was a rare good song, 'If You Squeeze Me Tighter, Jimmie, I Shall Scream.
"Adventures of Bindle" by Herbert George Jenkins
He rarely puts pen to paper at night.
"Methods of Authors" by Hugo Erichsen
Such hands are, indeed, somewhat rare among the fishermen's daughters at Portbail.
"Toilers of the Sea" by Victor Hugo
We were taken out for a drive in fine weather, but rarely went out on foot.
"Reminiscences, 1819-1899" by Julia Ward Howe
Even in politics the names of oratorical statesmen are rarely associated with the organic growth of enduring institutions.
"The English in the West Indies" by James Anthony Froude
Although the want of population might seem to abandon the interminable deserts of Tartary to wild beasts, wolves are rarely met with.
"Travels in Tartary, Thibet, and China During the years 1844-5-6. Volume 1 [of 2]" by Evariste Regis Huc
Even now I study pretty regularly two hours a day, but I rarely sing more than a few minutes.
"Great Singers on the Art of Singing" by James Francis Cooke
But they are rare amongst their own class; one might almost say rare in any class; the exception, not the rule.
"Glories of Spain" by Charles W. Wood
Occasions rarely occur to justify these sudden demonstrations of disorder and more rarely result in good.
"Sages and Heroes of the American Revolution" by L. Carroll Judson
I have never found the Struthiolaria vermis except cast up on ocean beaches, and it is comparatively rare.
"Beautiful Shells of New Zealand" by E. G. B. Moss
The temperature shows a slight, rarely considerable, rise.
"Handbook of Medical Entomology" by William Albert Riley
Lime was rarely used in daubing, since lime was obtainable only by burning shells.
"Historic Homes" by Mary H. Northend
Throughout the entire desert rain rarely falls.
"The World and Its People: Book VII" by Anna B. Badlam
Women who love loyally welcome their friends successes; men rarely do.
"The Lady Evelyn" by Max Pemberton
The presence of the priest is so far from being held indispensable, that a wedded pair forms a rare phenomenon in Abyssinia.
"The Highlands of Ethiopia" by William Cornwallis Harris

In poetry:

White as rare crystals shining fair.
There stirs no life: the faded wood
Mourns sighing, and the solitude
Seems shaken with a mighty care.
"A November Sketch" by Madison Julius Cawein
Why was it that he could not stay–
Too rare a gift? Yet who could hold
A treasure with securer fold
Than I, to whom love taught the way?
"The Mother" by Isabel Ecclestone Mackay
Or that, in future years, thy babes
Should o'er this frail memorial bend,
(For first affection rarely fades!)
And boast that I was once the friend
"Epistle to a Friend" by Thomas Gent
"It may be that I did o'erprize,
Above the Giver, that rare gift,
Ungird my will for softer ties,
And hold my manhood little thrift
To woman's eyes.
"Mount Arafa" by Richard Doddridge Blackmore
I have met other women who were tender,
As you were cold, dear! with a grace as rare.
Think you, I turned to them, or made surrender,
I who had found you fair?
""You would have understood me, had you waited"" by Ernest Christopher Dowson
This web of human life, so interwrought,
With warp and woof and colours rarely sought;
We see it being woven and in our heart
There lives the hunger of all eager thought.
"Omar Khayyam" by Alexander Anderson

In news:

Rare manatee sighting in Galveston.
It's like we're always on the go and rarely take time to just slow down and appreciate what we have.
Millions of people across Asia and the western United States watched as a rare "ring of fire" eclipse crossed their skies earlier tonight.
Indiana athletic director Fred Glass grew up going to Hoosiers football games but rarely felt he was in a Big Ten atmosphere.
The US Army has taken the rare step of stripping an officer of his combat infantry badge and is in the process of dismissing him from military service.
Memories are rarely made of the fish you may have caught.
Rare Grooves, Outernational Soundscapes past or present.
Rare Picasso found at Evansville Museum will be sold.
Stravinsky, a Rare Bird Amid the Palms.
Jim Carlen lived a rare life -- coaching three major college football teams and winning the Heisman Trophy.
TOP FIVE GAMES 1 SOUTHERN CALIFORNIA vs SYRACUSE (MetLife Stadium), Sept 8 Trojans make a rare trip East looking to bolster their case for No.
Photographer Dan Winters gives us a rare glimpse into the hidden corners of the Warner Bros studio back lot, where history is made every day and even the brooms have stories to tell.
A Rare Blip For Sherrill In the 12th.
Rare Blood Type Can Save Vulnerable Babies.
With the GOP convention beginning on Monday, Mitt Romney will get a rare, distraction-free chance to present to the country his case for his candidacy.

In science:

The order of magnitude of the ratio ℓ∗ of rare-earth materials .
Transport mean free path for Magneto-Transverse Light Diffusion: an alternative approach
These occur because of rare regions locally in the disordered phase.
Dynamics and transport in random quantum systems governed by strong-randomness fixed points
For this, we need two rare RS-like segments (domain walls) with ˜J z < ∼ ω , one on each side of our (typical) region.
Dynamics and transport in random quantum systems governed by strong-randomness fixed points
However, the divergence in Sloc (ω ) comes from a few very rare sites which give a very large contribution.
Dynamics and transport in random quantum systems governed by strong-randomness fixed points
First, they should only form very rarely, since the star formation rate is so low (see §4).
The Formation of Star Clusters
This can be explained by the observation that the trees of Tk that have a vertex of large degree are relatively rare (see e.g. ).
Products of random matrices and q-Catalan numbers
In the study of first order phase transition, we would be interested in sampling the rare microstates that describe interfaces between the ordered and disordered phases.
An Introduction to Monte Carlo Simulation of Statistical physics Problem
This case is actually quite rare; in particular, the only simple group for which the fundamental real representation is of this type, i.e. quaternionic, is G = SU (2) (with G = su(2) ≡ A1 ): that is, the quaternion group itself.
Poincare' normal forms and simple compact Lie groups
As can be seen in figure 6, the running average of the spin-spin correlation function presents jumps due to these rare events.
Quenched bond dilution in two-dimensional Potts models
The multifractal spectrum is broader at larger values of the number of states per spin, indicating a more important relative weight of the rare events, which implies that numerical results would become less reliable for large q ’s.
Quenched bond dilution in two-dimensional Potts models
But a small fraction, those that form a singlet pair, will have correlations of order unity independent of their separation; these rare pairs completely dominate the average correlations as well as the other low temperature properties of the random system.
Spin Reduction Transition in Spin-3/2 Random Heisenberg Chains
Unfortunately, cases such as this in which we can solve exactly for H0 (x) and H1 (x) are rare.
Random graphs as models of networks
With the calorimeter as a target, it is possible to measure d2σ/dxdy and structure functions from νµ and ¯νµ interactions on lead, to study dimuon production and to search for rare processes.
MC generators in CHORUS
M32 is the prototype for the relatively rare class of galaxies referred to as compact el lipticals.
Evidence for an outer disk in the Prototype `Compact Elliptical' Galaxy M32
Such studies are rare largely because of the high cost involved.
A Connection-Centric Survey of Recommender Systems Research