D defs.my
Entry 1 sense Webster, 1913

Sixty-fourth

· Six·ty-fourth · IPA /ˌsɪksti ˈfɔɹθ/
01 a. Constituting or being one of sixty-four equal parts into which a thing is divided.
  1. 1.
    Constituting or being one of sixty-four equal parts into which a thing is divided.
Phrases & compounds
Sixty-fourth note — the sixty-fourth part of a whole note; a hemi-demi-semiquaver.