Akademik

diaschisma

\\ˌdīəˈskizmə\ noun (-s)

Etymology: New Latin, from Greek diaschisma, from diaschizein to sever

1. : one of several minute intervals in ancient Greek music

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

Useful english dictionary. 2012.