microtone
Concise Oxford English Dictionary © 2008 Oxford University Press:
microtone/ˈmʌɪkrə(ʊ)təʊn/
▶noun Music an interval smaller than a semitone.
– derivatives
microtonal adjective,
microtonality noun,
microtonally adverb.
microtonal adjective,
microtonality noun,
microtonally adverb.
'microtone' also found in these Oxford entries:

