bass clef bass clef /ˈbæs klɛf/

noun

1. A clef that puts the F below middle C on the fourth line of a staff  ( bass clef , F clef )
   a clef that puts the F below middle C on the fourth line of a staff
    The bass clef is used to represent low notes in sheet music
   The bass clef is used to represent low notes in sheet music