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Related to Ounces: Troy ounces


in zoology: see leopardleopard,
large carnivore of the cat family, Panthera pardus, widely distributed in Africa and Asia. It is commonly yellow, buff, or gray, patterned with black spots and rings. The rings, unlike those of the New World jaguar, never have spots inside them.
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see English units of measurementEnglish units of measurement,
principal system of weights and measures used in a few nations, the only major industrial one being the United States. It actually consists of two related systems—the U.S.
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(1) A unit of weight in the English system of measures. One ounce equals 16 drams = 437.5 grains = 28.3495 g.

(2) A unit of apothecaries’ weight. The apothecaries’ ounce contains 8 drams or 24 scruples; the Russian apothecaries’ ounce was equal to 29.860 g. In the English system of measures, the apothecaries’ ounce, as well as the troy ounce (a measure of weight for precious metals), is equal to 31.1035 g.

(3) Fluidounce, a measure of volume, equivalent to 8 fluidrams. The fluid ounce corresponds to 29.5737 cm3 in the USA or to 28.413 cm3 in Great Britain.


A unit of mass in avoirdupois measure equal to ¹⁄₁₆ pound or to approximately 0.0283495 kilogram. Abbreviated oz.
A unit of mass in either troy or apothecaries' measure equal to 480 grains or exactly 0.0311034768 kilogram. Also known as apothecaries' ounce or troy ounce (abbreviations are oz ap and oz t in the United States, and oz apoth and oz tr in the United Kingdom).


1. a unit of weight equal to one sixteenth of a pound (avoirdupois); 1 ounce is equal to 437.5 grains or 28.349 grams
2. a unit of weight equal to one twelfth of a Troy or Apothecaries' pound; 1 ounce is equal to 480 grains or 31.103 grams
3. short for fluid ounce
References in classic literature ?
I sold him the arsenic--about an ounce and a half--and labeled the bottle in which I put it with the word 'Poison' in my own handwriting.
And this, good friends, is ambergris, worth a gold guinea an ounce to any druggist.
He is over six feet, is young, hasn't an ounce of waste flesh, is straight, graceful, springy in his motions, quick as a cat, and has a handsome face, and black hair dangling down on his shoulders, and is beautiful to look at; and nobody is braver than he is, and nobody is stronger, except myself.
An ounce of good behavior is worth a pound of repentance.
Estella opened the gate as usual, and, the moment she appeared, Joe took his hat off and stood weighing it by the brim in both his hands: as if he had some urgent reason in his mind for being particular to half a quarter of an ounce.
Samuel Whiskers has run up a bill as long as his tail; he has had an ounce and three-quarters of snuff since October.
If that be so," said Panza, "I renounce henceforth the government of the promised island, and desire nothing more in payment of my many and faithful services than that your worship give me the receipt of this supreme liquor, for I am persuaded it will be worth more than two reals an ounce anywhere, and I want no more to pass the rest of my life in ease and honour; but it remains to be told if it costs much to make it.
Dantes noticed that the captain of The Young Amelia had, as he neared the land, mounted two small culverins, which, without making much noise, can throw a four ounce ball a thousand paces or so.
It was in Captain S-'s tradition rather to reprove his officers for not carrying on quite enough - in his phrase "for not taking every ounce of advantage of a fair wind.
A selection of medicine, including an ounce of quinine, and one or two small surgical instruments.
If I had an ounce of sense I'd never see you again," he said at last.
And then I let go, with every ounce of my weight and muscle and science in back of that throw.