minerals noun 1phrases 1 noun[plural only]1 •(slang, old-fashioned) Testicles, balls, especially in the figurative sense of nerve or courage.He wouldn't mess with me. He hasn't got the minerals. Phrases with minerals mines and mineralsThe legal title to geological resources in the subsurface of a piece of land, usually by reference to being in the same or separate ownership to the surface of that land.