Acclivity

• (n.) 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.
Found on http://thinkexist.com/dictionary/meaning/acclivity/

Acclivity

Ac·cliv'i·ty noun ; plural Acclivities [ Latin acclivitas , from acclivis , acclivus , ascending; ad + clivus a hill, slope, from root kli to lean. See Lean .] A slope or inclination of the earth, as the side of a hill, considered as ...
Found on http://www.encyclo.co.uk/webster/A/14

acclivity

acclivity 1. An upward slope or grade; such as, in a road. 2. An upward slope on a hill.
Found on http://www.wordinfo.info/words/index/info/view_unit/1102/

acclivity

upward slope
Found on http://phrontistery.info/a.html
No exact match found