hemi-demi-semiquaver

from The Century Dictionary.

• noun In musical notation, a note equal in duration to one half of a demisemiquaver or one eighth of a quaver; a sixty-fourth note: written as shown at adjective

from the GNU version of the Collaborative International Dictionary of English.

• noun (Mus.) A short note, equal to one fourth of a semiquaver, or the sixty-fourth part of a whole note.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a musical note having the time value of a sixty-fourth of a whole note