• WordNet 3.6
    • adj tan of a light yellowish-brown color
    • v tan get a tan, from wind or sun
    • v tan treat skins and hides with tannic acid so as to convert them into leather
    • n tan a light brown the color of topaz
    • n tan ratio of the opposite to the adjacent side of a right-angled triangle
    • n tan a browning of the skin resulting from exposure to the rays of the sun
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: The palms of your hands and the soles of your feet cannot tan, or grow hair
    • Tan A brown color imparted to the skin by exposure to the sun; as, hands covered with tan .
    • Tan A yellowish-brown color, like that of tan.
    • a Tan Of the color of tan; yellowish-brown.
    • n Tan See Picul.
    • Tan The bark of the oak, and some other trees, bruised and broken by a mill, for tanning hides; -- so called both before and after it has been used. Called also tan bark.
    • Tan To convert (the skin of an animal) into leather, as by usual process of steeping it in an infusion of oak or some other bark, whereby it is impregnated with tannin, or tannic acid (which exists in several species of bark), and is thus rendered firm, durable, and in some degree impervious to water.
    • v. i Tan To get or become tanned.
    • Tan To make brown; to imbrown, as by exposure to the rays of the sun; as, to tan the skin.
    • Tan To thrash or beat; to flog; to switch; as, to tan a disobedient child's hide.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Leather skin does not have any smell. The leather smell that you sense is actually derived from the materials used in the tanning process
    • n tan The term is often used to mean spent bark which has served for the manufacture of leather and is spread over streets to deaden the sound of vehicles, or over the floor of a riding-school or circus to diminish the danger of falls, or applied to clay land as a loosening material. It is also commonly used as fuel in tanneries.
    • n tan A Chinese unit of weight, a picul, equal to 133⅛ pounds avoirdupois.
    • n tan A Japanese measure of surface, equal to .245 of an acre.
    • tan To prepare, as skins of animals, by soaking in some liquid containing tannic acid, which is generally obtained from the bark of some tree, oak-bark being commonly thought to be the best. Other barks, especially that of hemlock, are also largely used. This process converts the raw hide into leather.
    • tan By extension, to convert into leather by other means, as by the use of mineral salts (as those of iron and chromium), and even of oil or fat, as in the case of buckskin, chamois, and the like. See leather, taw, 2.
    • tan To make brown; embrown by exposure to the rays of the sun.
    • tan To deprive of the freshness of youth; impair the freshness and beauty of.
    • tan To beat; flog; thrash.
    • tan In the manufacture of so-called artificial marble, or an imitation of marble made from a mixture of gelatin and gum, to render (cast slabs of the mixture) hard and insoluble by steeping in a suitable preparation. See tannage, 3.
    • tan To treat with some hardening process as a preservation from rot, as fish-nets.
    • tan To be or become tanned: as, the leather tans easily.
    • tan To become tan-colored or tawny: as, the face tans in the sun.
    • n tan The bark of the oak, willow, chestnut, larch, hemlock, spruce, and other trees abounding in tannin, bruised and broken by a mill, and used for tanning hides.
    • n tan A yellowish-brown color, like that of tan: as, gloves of gray or tan.
    • n tan An embrowning of the skin by exposure to the sun.
    • tan Of the color of tan, or of a color approaching that of tan; yellowish-brown.
    • n tan A twig, or small switch.
    • n tan An obsolete Middle English contraction of taken, old infinitive or past participle of take.
    • n tan A Middle English contraction of to an.
    • n tan Same as fan-tan.
    • n tan An abbreviation of tangent.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: Pakistan was named in 1933 and is derived from the first letters of "Punjab," "Afghan," "Kashmir," "Sind," and "Tan." All of these are districts or states of what is now Pakistan.
    • n Tan tan bark of the oak, &c., bruised and broken for tanning: a yellowish-brown colour
    • v.t Tan to convert skins and hides into leather by steeping in vegetable solutions containing tannin: to make brown or tawny: to take the freshness from:
    • v.i Tan to become tanned:—pr.p. tan′ning; pa.t. and pa.p. tanned
    • v.t Tan (coll.) to beat
    • ***


Webster's Revised Unabridged Dictionary
F. tan, perhaps fr. Armor. tann, an oak, oak bar; or of Teutonic origin; cf. G. tanne, a fir, OHG. tanna, a fir, oak, MHG. tan, a forest. Cf. Tawny


In literature:

He was tall, dark-eyed, very deeply tanned, with thick sloping shoulders.
"Legacy" by James H Schmitz
The man colored under the tan the sun and wind had spread over his face.
"Mary Rose of Mifflin" by Frances R. Sterrett
You could read the disappointment in their sun-tanned faces.
"The Trail of '98" by Robert W. Service
Mr. Harper had a tanning vat on his plantation especially for the purpose of tanning hides for their shoes.
"Slave Narratives: A Folk History of Slavery in the United States" by Work Projects Administration
They were shapely hands, large and generous; a good deal tanned and freckled now.
"Peak and Prairie" by Anna Fuller
His face was pale beneath the tan as he stepped out into the morning sun.
"The Forbidden Trail" by Honoré Willsie
The face exposed was smoothly shaven and weather-tanned.
"Frank Merriwell Down South" by Burt L. Standish
It was yellowish tan in color, a trifle stiff, and inclined to curl to the shape it had held so long.
"As It Was in the Beginning" by Philip Verrill Mighels
Out came a brace of revolvers in the hands of the weather-tanned guide, and the yells which broke from his lips awoke a hundred echoes.
"Frank Merriwell's Bravery" by Burt L. Standish
In Romany Makkado-tan-engree, that is, Fellows of the Marshes.
"The Gypsies" by Charles G. Leland

In poetry:

I spoke to ’em as man to man,
I said I’d fight ’em all;
I would have broke O’Mealleys neck,
And tanned the hide of Hall.
"The Swagless Swaggie" by Edward Harrington
Full wistfully along the slender way,
Through summer tan of freckled shade and shine,
I take the path that leads me as it may--
Its every choice is mine.
"A Country Pathway" by James Whitcomb Riley
You mustn't show weakness
and you've got to have a tan.
But sometimes I feel like the thin veils
of Jewish women who faint
at weddings and on Yom Kippur.
"You Mustn't Show Weakness" by Yehuda Amichai
“You needn’t be fwightened.” Says baby,
“I’ll be as wight as tan be,
I’LL give Sister our names, and I’ll tell her
That ‘Mary Beronica’s’- me.”
"The First School Day" by Alice Guerin Crist
The treason of the centuries is dead,
All alien whites are forever gone;
The glad home of Sheba is once more free,
As o'er the world the black n-tan raised his head.
"Hail! United States of Africa" by Marcus Mosiah Garvey
Divine instinct, breadth of vision, the law of reason, health,
rudeness of body, withdrawnness,
Gayety, sun-tan, air-sweetness—such are some of the words of
"The Indications" by Walt Whitman

In news:

Pippa Middleton showed off her tan and toned legs while out and about in London.
Edited by Charles A Tan.
According to the complaint, in 2007 plaintiffs Eric Bramlett, Wesley Cox and Paul Rudnicki started a website called Tantans.com, selling tanning lotions directly to the public.
For the past couple of years, Paul Crouch has turned his well-tanned face to the heavens, seeking out the face of his God.
Erik Hersman, in tan blazer, at iHub's first anniversary party.
How Ming Tan, FRCR, FAMS.
For most of us, the months of May through September are spent maintaining the perfect bronze tan (from the bottle, of course) that we'd been dreaming about all winter long.
A Peachtree City man pled guilty in court Tuesday to spying on a 16-year-old girl who was undressing inside a tanning salon back in April.
Too tan reality stars have given this style a bad rap.
Pregnant, no-tan look draws much positive feedback .
Farmer's tan contest offers prize money .
The recent scorching summer temperatures could lead to some serious tan lines, but for those of you with farmer's tans, you could win $1,000.
Tan, no markings, no tags.
Male chihuahua brown and tan, lost in Rincon .
How do you say "gym, tan, laundry" in Italian.

In science:

As to the Yukawa coupling evolution, we have considered both the cases of small and large values of tan β .
From Prototype SU(5) to Realistic SU(7) SUSY GUT
String scale unification is obtained with a QCD coupling constant in agreement with the world average value, αs (MZ ) = 0.119 ± 0.002, for both small and large tan β .
From Prototype SU(5) to Realistic SU(7) SUSY GUT
Table 2: The 2-loop order string-scale unification for the small tan β case is presented.
From Prototype SU(5) to Realistic SU(7) SUSY GUT
Table 3: The 2-loop order string-scale unification for the large tan β case is presented.
From Prototype SU(5) to Realistic SU(7) SUSY GUT
Mathur, C.-I Tan, “Glueball spectrum for QCD from AdS supergravity duality”, hep-th/0003115.
Large N field theories from superstrings