Ounce Definition

ouns
ounces, oz
noun
ounces
A unit of weight, equal to116 pound avoirdupois or 16 drams (28.3495 grams)
Webster's New World
A unit of weight, equal to112 pound troy or 20 pennyweights (31.1035 grams)
Webster's New World
A unit of weight, equal to112 pound apothecaries' weight or 8 drams (31.1035 grams)
Webster's New World
A fluid ounce.
American Heritage
Webster's New World
Synonyms:

Other Word Forms of Ounce

Noun

Singular:
ounce
Plural:
ounces

Origin of Ounce

  • From French once, from lonce (“lynx"), by false division (the l was thought to be the article), from Latin lynx, from Ancient Greek λύγξ (lunks, “lynx"). Interestingly, the taxon of the snow leopard is a Latinisation using the root of ounce (1).

    From Wiktionary

  • From Middle French once, from Latin uncia (“1/12 part"), from Å«nus (“one"). Compare inch.

    From Wiktionary

  • Middle English unce from Old French from Latin ūncia oi-no- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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