a. 小于半音的, 异名同音的

Enharmonic \En`har*mon"ic\ ([e^]n`h[.a]r*m[o^]n"[i^]k),
Enharmonical \En`har*mon"ic*al\ ([e^]n`h[.a]r*m[o^]n"[i^]*kal),
a. [Gr. 'enarmoniko`s, 'enarmo`nios fitting, accordant; 'en
in + "armoni`a harmony: cf. F. enharmonique.]
1. (Anc. Mus.) Of or pertaining to that one of the three
kinds of musical scale (diatonic, chromatic, enharmonic)
recognized by the ancient Greeks, which consisted of
quarter tones and major thirds, and was regarded as the
most accurate.

2. (Mus.)
(a) Pertaining to a change of notes to the eye, while, as
the same keys are used, the instrument can mark no
difference to the ear, as the substitution of A[flat]
for G[sharp].
(b) Pertaining to a scale of perfect intonation which
recognizes all the notes and intervals that result
from the exact tuning of diatonic scales and their
transposition into other keys.