| nonmetal | <chemistry> Any one of the set of elements which, as contrasted with the metals, possess, produce, or receive, acid rather than basic properties; a metalloid; as, oxygen, sulphur, and chlorine are nonmetals. Source: Websters Dictionary (01 Mar 1998) |
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| nonmetallic | 1. Not metallic. 2. <chemistry> Resembling, or possessing the properties of, a nonmetal or metalloid; as, sulphur is a nonmetallic element. Source: Websters Dictionary (01 Mar 1998) |