(mineralogy) An orthorhombic-dipyramidal mineral containing boron, iron, magnesium, and oxygen.

(US, sometimes offensive, chiefly prison slang, of a person) A peckerwood.

(C19 Britain) A boy who cleans boots and shoes. / (1970s Britain slang) One of a gang of violent hooligans who usually wear short-cropped hair and bovver boots.

(databases) Between more than one query.