Definitions for nonmetalnɒnˈmɛt l
Random House Webster's College Dictionary
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:
a chemical element lacking typical metallic properties
not containing or resembling or characteristic of a metal
an element, such as phosphorus or chlorine, that does not have the chemical or physical properties of a metal
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