Definition of supplementarity in English:

supplementarity

noun

  • The condition or quality of being supplementary.

Origin

1930s; earliest use found in Revies of Economic Studies. From supplementary + -ity, after French supplémentarité.

Pronunciation

supplementarity

/ˌsʌplɪmɛnˈtarɪti//ˌsʌplɪm(ə)nˈtarɪti/