ETYM Latin inversio: cf. French inversion. Related to Invert.
In music, the mirror-image of a melody used in counterpoint; alternatively a chord in which the natural order of notes is rearranged.
1. The act of turning inside out; SYN. eversion, everting.
2. The layer of air near the earth is cooler than an overlying layer.
3. Turning upside down; SYN. upending.