Ounce - Dictionary Definition and Overview

Ounce :  (noun)
1: 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]

Based on WordNet 2.0

Ounce : \Ounce\, n. [F. once, fr. L. uncia a twelfth, the twelfth part of a pound or of a foot: cf. Gr. ? bulk, mass, atom. Cf. 2d Inch, Oke.] 1. A weight, the sixteenth part of a pound avoirdupois, and containing 437? grains.

2. (Troy Weight) The twelfth part of a troy pound.

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. --Chaucer.

Fluid ounce. See under Fluid, n.

Based on Webster's Revised Unabridged Dictionary

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, or 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 Asia. Called also once.

Based on Webster's Revised Unabridged Dictionary

OUNCE. The name of a weight. AnOunce : avoirdupois weight is the sixteenth part of a pound; an ounce troy weight is the twelfth part of a pound. Vide Weights.

Based on Bouvier's Law Dictionary, Revised 6th Ed (1856) [Bouvier_Law_Dictionary]:

Ounce :  Ounce: A measure of weight equal to 1/16th of a pound or, metrically, 28.35 grams. The abbreviation for ounce is oz. (An ounce of prevention is reputedly worth a pound of cure.)



Based on Bouvier's Law Dictionary, Revised 6th Ed (1856) [Bouvier_Law_Dictionary]:
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