Definition from Wiktionary, the free dictionary
- First attested in 1614.
- From Latin acclīvitās, from acclīvis (“ascending”), from ad + clīvus (“slope”).
acclivity (plural acclivities)
- (geomorphology) A slope or inclination of the earth, as the side of a hill, considered as ascending, in opposition to declivity, or descending; an upward slope; ascent.