declivitous (deklivitus)

[ declivity (de-kliv'i-ti), n.; pl. declivities (-tiz). [ It [the Ural] consists, along its western declivity , of the older palæozoic rocks. Sir J. Herschel. The Pyrenees made then, as they make now, no very serious difference between the languages spoken on their Ticknor, Span. Lit., I. 277. opposite declivities. (b) In entom., a part gently sloping away from the general plane of a surface. - Declivity of the metathorax, a sloping or perpendicular portion of the metathorax over the base of the abdomen.