Definition of ounce

Definition of ounce
  1. ounce Noun An avoirdupois ounce, weighing 1/16 of an avoirdupois pound, or 28.3495 grams.
  2. ounce Noun A troy ounce, weighing 1/12 of a troy pound, or 480 grains, or 31.1035 grams.
  3. ounce Noun 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. ounce Noun A British imperial fluid ounce, with a volume of 1/20 of an imperial pint, 1.733871 cubic inches or 28.413063 milliliters.
  5. ounce Noun A little bit.
  6. ounce Noun The snow leopard (Uncia uncia).
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