D defs.my
Entry 1 sense Webster, 1913

Semiquaver

/(sĕm"ĭ*kwā`vẽr)/ · Sem·i·qua·ver · IPA /ˈsɛmiˌkweɪvə(ɹ)/
01 n. A note of half the duration of the quaver; -- now usually called a sixteenth note.
  1. 1.
    A note of half the duration of the quaver; -- now usually called a sixteenth note.(Mus.) Also: sixteenth note