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1

ounce

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noun \ˈau̇n(t)s\

Definition of ounce

  1. 1 a :  a unit of weight equal to 112 troy pound — see weight table b :  a unit of weight equal to 116 avoirdupois pound c :  a small amount <an ounce of sense>

  2. 2 :  fluid ounce



Origin of ounce

Middle English, from Anglo-French unce, from Latin uncia 12th part, ounce, from unus one — more at one


First Known Use: 14th century

Other Weights and Measures Terms


2

ounce

noun

Definition of ounce



Origin of ounce

Middle English unce lynx, from Middle French, alteration (by misdivision, as if l'once the ounce) of lonce, probably from Old Italian lonza, from Middle Greek lynk-, lynx, from Greek


First Known Use: 1774

Rhymes with ounce



OUNCE Defined for Kids

ounce

play
noun \ˈau̇ns\

Definition of ounce

  1. 1 :  a unit of weight equal to 116 pound (about 28 grams)

  2. 2 :  a unit of liquid capacity equal to 116 pint (about 30 milliliters)




Medical Dictionary

ounce

play
noun \ˈau̇n(t)s\

Medical Definition of ounce

  1. 1a:  a unit of troy weight equal to 112 troy pound or 31.103 gramsb:  a unit of avoirdupois weight equal to 116 avoirdupois pound or 28.350 grams

  2. 2:  fluid ounce





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