'ounce' definitions:

Definition of 'ounce'

From: WordNet
noun
A unit of apothecary weight equal to 480 grains or one twelfth of a pound [syn: ounce, troy ounce, apothecaries' ounce]
noun
A unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams [syn: ounce, oz.]
noun
Large feline of upland central Asia having long thick whitish fur [syn: snow leopard, ounce, Panthera uncia]