- nonmetallic⇄adj. not like a metal. Carbon, oxygen, sulfur, and nitrogen are nonmetallic chemical elements.
- nonmetallic⇄nonmetallic, adjective, noun.
- nonmetallic⇄noun a nonmetallic substance.
Ex. In addition to its leading position in diamonds and lithium minerals, Africa produced important quantities of other nonmetallics (Berenice B. Mitchell).