Definition of bass clef in US English:

bass clef

noun

Music
  • A clef placing F below middle C on the second-highest line of the staff.

    • ‘Two parts are scored in treble clef and two parts in bass clef, with suggested instruments listed for each part.’
    • ‘Continuing either up or down to the next octave, we have C as 2 ledger lines above the treble or below the bass clefs.’
    • ‘I studied piano for eight years and never learned to read the bass clef.’
    • ‘We practice writing bass clefs and the five corresponding lines.’
    • ‘Another popular approach uses the landmark notes of ‘G’ and ‘F’ and makes use of the terms ‘G clef’ and ‘F clef’ instead of treble and bass clef.’

Pronunciation

bass clef

/ˌbās ˈklef//ˌbeɪs ˈklɛf/