acclivity - Definitions from Dictionary.com

ac·cliv·i·ty Audio Help (ə-klĭv'ĭ-tē) Pronunciation Key
n. pl. ac·cliv·i·ties
An upward slope, as of a hill.

[Latin acclīvitās, from acclīvis, uphill : ad-, ad- + clīvus, slope; see klei- in Indo-European roots.]

ac·cliv'i-tous (-ĭ-təs) adj.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
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Online Etymology Dictionary - Cite This Source - Share This
acclivity

1614, from L. acclivitatem "steepness," from acclivis "mounting upwards, ascending," from ad- "up" + clivus "hill."

WordNet - Cite This Source - Share This

acclivity
noun
an upward slope or grade (as in a road); "the car couldn't make it up the rise" [syn: ascent] [ant: declension]

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Acclivity

Ac*cliv"i*ty\, n.; pl. Acclivities. [L. acclivitas, fr. acclivis, acclivus, ascending; ad + clivus a hill, slope, fr. root kli to lean. See Lean.] 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.

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