Definition of modulatory in English:

modulatory

Pronunciation /ˈmɒdjʊlət(ə)ri/ /ˌmɒdjʊˈleɪt(ə)ri/

adjective

  • Of, relating to, or serving for modulation.

Origin

Late 19th century; earliest use found in John Earle (1824–1903), philologist. From modulate + -ory.