fineness

[ fahyn-nis ]
/ ˈfaɪn nɪs /

noun

the state or quality of being fine.
the proportion of pure precious metal in an alloy, often expressed in parts per thousand.

Origin of fineness

late Middle English word dating back to 1400–50; see origin at fine1, -ness
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for fineness

fineness

/ (ˈfaɪnnɪs) /

noun

the state or quality of being fine
a measurement of the purity of precious metal, expressed as the number of parts per thousand that is precious metal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012