1. A weight, the sixteenth part
of a pound avoirdupois, and containing 437 grains.
2. The twelfth part
of a troy
The troy ounce
contains twenty pennyweights, every
of twenty-four grains, or, in all, 480 grains, and is the twelfth part
of the troy
pound. The troy ounce
in apothecaries' weight. [Troy ounce
is sometimes written as one word, troyounce.
3. A little
portion; a bit. "By ounces hung his
locks that he had." (Chaucer) Fluid ounce. See Fluid.
Origin: 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.
A feline quadruped (Felis irbis, or uncia) resembling the leopard in size, and somewhat in colour, 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.
Origin: 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.
Source: Websters Vocabulary