nonmetallic

[ non-muh-tal-ik ]
/ ˌnɒn məˈtæl ɪk /

adjective Chemistry.

of or relating to a nonmetal.
not of a metallic quality: a nonmetallic appearance.

Origin of nonmetallic

First recorded in 1805–15; non- + metallic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for nonmetallic

nonmetallic

/ (ˌnɒnmɪˈtælɪk) /

adjective

not of metal
of, concerned with, or being a nonmetal
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