- an element not having the character of a metal, as carbon or nitrogen.
- an element incapable of forming simple positive ions in solution.
Origin of nonmetal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for non-metal
That was no doubt light-matter, a non-metal, and as such, non-conductive to light.The Black Star Passes
John W Campbell
This mineral contains the metals aluminum and beryllium combined with the non-metal oxygen.A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public
Frank Bertram Wade
Many other reactions show that antimony has more of the properties of a metal than of a non-metal.An Elementary Study of Chemistry
- any of a number of chemical elements that form negative ions, have acidic oxides, and are generally poor conductors of heat and electricity
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
Word Origin and History for non-metal
Online Etymology Dictionary, © 2010 Douglas Harper