diaschisma

noun

di·​a·​schis·​ma

ˌdīəˈskizmə

plural -s

1

: one of several minute intervals in ancient Greek music

2

: a small musical interval (such as that between C and D double flat in pure intonation) that together with the schisma comprises the syntonic comma

Word History

Etymology

New Latin, from Greek diaschisma, from diaschizein to sever

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