- The definition of an ounce is 1/16 of a pound or a very small amount of something.
- If you have 1/16 of a pound of caviar, this is an example of an ounce of caviar.
- If you show only a tiny amount of compassion to someone who is suffering when you'd be expected to show more, this is an example of when you show an ounce of compassion.
- : symbol for all preceding senses, oz
- a unit of weight, equal to pound avoirdupois or 16 drams (28.3495 grams)
- a unit of weight, equal to pound troy or 20 pennyweights (31.1035 grams)
- a unit of weight, equal to pound apothecaries' weight or 8 drams (31.1035 grams)
- fluid ounce
- any small amount: an ounce of care
Origin of ounceOld French unce ; from Classical Latin uncia, a twelfth, twelfth part of a foot or pound, origin, originally , unit, akin to Classical Latin unus, one
Origin of ounceMiddle English once ; from Old French ; from l'once, mistaken for lonce ; from Vulgar Latin an unverified form luncea ; from Classical Latin lynx, lynx
- Abbr. oza. A unit of weight in the US Customary System, an avoirdupois unit equal to 437.5 grains (28.35 grams).b. A unit of apothecary weight, equal to 480 grains (31.103 grams). See Table at measurement.
- A fluid ounce. See Table at measurement.
- A tiny bit: not an ounce of sympathy.
Origin of ounceMiddle English unce, from Old French, from Latin ūncia; see oi-no- in Indo-European roots.
See snow leopard.
Origin of ounceMiddle English unce, from Old French once, alteration of lonce, from Vulgar Latin *luncea, from Latin lynx, lync-, lynx, from Greek lunx; see leuk- in Indo-European roots.
(plural ounces) abbreviation oz.
- An avoirdupois ounce, weighing 1/16 of an avoirdupois pound, or 28.3495 grams.
- A troy ounce, weighing 1/12 of a troy pound, or 480 grains, or 31.1035 grams.
- A US fluid ounce, with a volume of 1/16 of a US pint, 1.804 687 cubic inches or 29.573 531 milliliters.
- A British imperial fluid ounce, with a volume of 1/20 of an imperial pint, 1.733871 cubic inches or 28.413063 millilitres.
- A little bit.
- He didn't feel even an ounce of regret for his actions.
- The snow leopard, Uncia uncia.