uncia

[ uhn-shee-uh ]
/ ˈʌn ʃi ə /

noun, plural un·ci·ae [uhn-shee-ee] /ˈʌn ʃiˌi/.

a bronze coin of ancient Rome, the 12th part of an as.
(in prescriptions) an ounce of weight or volume.

Origin of uncia

1685–95; < Latin: a twelfth part, akin to ūnus one; cf. inch1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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