semiquaver

A sixteenth note.

In musical notation, same as sixteenth-note.

2. Figuratively, something of very short duration; a very short space of time.

To play or sing in, or as in, semiquavers.

A note of half the duration of the quaver; — now usually called a sixteenth note.

a sixteenth note, drawn as a crotchet with two tails.

a musical note having the time value of a sixteenth of a whole note