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Longman Dictionary of Contemporary English
an ounce of common sense (=a very small amount)
▪ Anyone with an ounce of common sense would have realised that was a silly thing to do.
fluid ounce
▪ It weighs seven pounds twelve ounces, is ten and a half inches long and nine inches wide.
▪ They didn't weigh more than a few ounces.
▪ February gold fell 90 cents to $ 399. 30 an ounce on Commodity Exchange.
▪ Hardly an ounce of flesh anywhere.
▪ It was the centrifuge that yielded the last cull, a final ounce of bits of metal.
▪ It weighs seven pounds twelve ounces, is ten and a half inches long and nine inches wide.
▪ The Warriors needed every lean ounce of effort Smith provided in the fourth quarter.
▪ This was the real Janir, I thought, the one without an ounce of shyness or indecision.
▪ Where a cereal is very light, like cornflakes, an ounce will comfortably fill the usual breakfast bowl.
The Collaborative International Dictionary

Ounce \Ounce\ (ouns), n. [F. once, fr. L. uncia a twelfth, the twelfth part of a pound or of a foot: cf. Gr. 'o`gkos bulk, mass, atom. Cf. 2d Inch, Oke.]

  1. A weight, the sixteenth part of a pound avoirdupois, and containing 28.35 grams or 4371/2 grains.

  2. (Troy Weight) The twelfth part of a troy pound; one troy ounce weighs 31.103486 grams, 8 drams, or 480 grains.

    Note: The troy ounce contains twenty pennyweights, each of twenty-four grains, or, in all, 480 grains, and is the twelfth part of the troy pound. The troy ounce is also a weight in apothecaries' weight. [Troy ounce is sometimes written as one word, troyounce.]

  3. Fig.: A small portion; a bit. [Obs.]

    By ounces hung his locks that he had.

    Fluid ounce. See under Fluid, n.


Ounce \Ounce\, n. [F. once; cf. It. lonza, Sp. onza; prob. for lonce, taken as l'once, fr. L. lynx, Gr. ?, or an (assumed) fem. adj. lyncea, from lynx. Cf. Lynx.] (Zo["o]l.) A feline quadruped ( Felis irbis syn. Felis uncia) resembling the leopard in size, and somewhat in color, but it has longer and thicker fur, which forms a short mane on the back. The ounce is pale yellowish gray, with irregular dark spots on the neck and limbs, and dark rings on the body. It inhabits the lofty mountain ranges of Asi

  1. Called also once.

Douglas Harper's Etymology Dictionary

unit of weight, early 14c., from Old French once, unce, a measure of weight or time (12c.), from Latin uncia "one-twelfth part" (of a pound, foot, etc.), from Latin unus "one" (see one). The Latin word had been adopted in Old English as ynce (see inch). It was one-twelfth of a pound in the Troy system of weights, but one-sixteenth in avoirdupois. Abbreviation oz. is from older Italian onza. Also used in Middle English as a measure of time (7.5 seconds) and length (about 3 inches).


"wildcat," c.1300, from Old French once "lynx" (13c.), from lonce, with l- mistaken as definite article, from Vulgar Latin *luncea, from Latin lyncea "lynx-like," from lynx (see lynx). Originally the common lynx, later extended to other wildcats, now mainly used of the mountain-panther or snow leopard of Asia.


Etymology 1 n. 1 An avoirdupois ounce, weighing 1/16 of an avoirdupois pound, or 28.3495 grams. 2 A troy ounce, weighing 1/12 of a troy pound, or 480 grains, or 31.1035 grams. 3 A US fluid ounce, with a volume of 1/16 of a US pint, 1.804 687 cubic inches or 29.573 531 milliliters. 4 A British imperial fluid ounce, with a volume of 1/20 of an imperial pint, 1.733871 cubic inches or 28.413063 millilitres. 5 A little bit. Etymology 2

n. The snow leopard, ''Uncia uncia''.

  1. n. a unit of apothecary weight equal to 480 grains or one twelfth of a pound [syn: troy ounce, apothecaries' ounce]

  2. a unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams [syn: oz.]

  3. large feline of upland central Asia having long thick whitish fur [syn: snow leopard, Panthera uncia]

Ounce (disambiguation)

An ounce is any of several units of mass

Ounce may also be:

  • Ounce-force, a unit of force, one sixteenth of a pound-force
  • Fluid ounce, any of several units of volume
  • Ounce, a unit of length used to measure the thickness of leather or hide
  • Ounce, alternative name for the Snow leopard
  • Ounce, an old name for the European lynx
  • Ounce, in heraldry the same feline as the leopard (heraldry)
  • Ounce (roman coin)

An ounce (abbreviated oz; apothecary symbol: ) is a unit of mass used in some systems of measurement.

Whilst various definitions have been used throughout history, two remain in common use: the avoirdupois ounce equal to approximately 28.3  g [grams] and the troy ounce of about 31.1  g [grams]. The avoirdupois ounce is widely used as part of the United States customary and British imperial systems, but the troy ounce is now only commonly used for the mass of precious metals such as gold, silver, platinum, palladium, rhodium, etc..

Usage examples of "ounce".

Next day the Baron technically did give Granny Aching gold, but it was only the gold-coloured foil on an ounce of Jolly Sailor, the cheap and horrible pipe tobacco that was the only one Granny Aching would ever smoke.

Granny Aching for all the gold in the world, but you could definitely attract her attention with an ounce of Jolly Sailor.

An excellent poison can be swiftly produced under field conditions by boiling two baskets of oleander leaves, distilling the essence, and adding three ounces of dried aconite tubers.

Fifty eggs well fried will yield about five ounces of this oil, which is acrid, and so enduringly liquid that watch-makers use it for lubricating the axles and pivots of their most delicate wheels.

Its efficacy may be increased in this disease by adding to each bottle one ounce of the acetate of potash, and, when thus modified, it may be administered in the same manner as if no addition had been made to it.

If the stomach be irritable, a tablespoonful of laudanum and one of tincture of lobelia, in four ounces of starch water, administered as an injection, is effectual.

Chemicals, but it did not consume much space: the salt, the agar, a small box of lye, six ounces of absolute alcohol and four of formalin.

If your company receives every ounce of alumite in existence and finds that it meets requirements, will they pay my price for the formula?

The methods of assaying are mainly those of analytical chemistry, and are limited by various practical considerations to the determination of the constituents of a small parcel, which is frequently only a few grains, and rarely more than a few ounces, in weight.

Chitten removed a dermoid from the sternum of a female of thirty-nine, the cyst containing 11 ounces of atheromatous material.

Their babies were both born at full term, both are breast-feeding, weigh within a few ounces of each other, and are less than two weeks apart in age.

Place in a stewpan with one cup of hot bechamel sauce, one-half breakfast-cupful of cream and about one-quarter of an ounce of butter.

Thereupon she drew from her finger a diamond ring, worth at least four hundred ounces, and begged me to accept it as a pledge.

If in 1885 it was not practicable to secure the adoption of the bimetallic system, when silver was worth eighty-four cents per ounce, what is the prospect of its adoption when silver is worth only sixtyfour cents per ounce, with an annually increasing product and a diminishing price?

As he stared at the broken bauble, the big, muscular man began to cry and moan of how the Holy See and its chosen captain, di Bolgia, had ruined him and Munster, driving loyal bonaghts and galloglaiches and even noble FitzGerald kinsmen away from their loving sovran, leaving him and Munster now defenseless except for craven, money-grubbing oversea mercenaries, with no true loyalty of bravery in them not reckoned in grams of gold and ounces of silver.