Longman Dictionary of Contemporary English
treble clef
noun
EXAMPLES FROM CORPUS
▪ Its part is generally written in the treble clef on B or G to distinguish it from the side-drum.
▪ Its part is written in the treble clef and sounds two octaves and a tone lower.
▪ The treble clef is always used even for the bottom notes.
Wiktionary
treble clef
n. (context music English) a symbol showing that the second line from the bottom of the stave represents the G above middle C
WordNet
treble clef
n. a clef that puts the G above middle C on the second line of a staff [syn: G clef]