dérivations inverses

== French == === Pronunciation === IPA(key): /de.ʁi.va.sjɔ̃ ɛ̃.vɛʁs/, /de.ʁi.va.sjɔ̃.z‿ɛ̃.vɛʁs/ === Noun === dérivations inverses f pl plural of dérivation inverse