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ridge

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The definition of a ridge is a long, narrow crest of something.

(noun)

An example of a ridge is the strip of mountains in the Southeast area of Mt. Everest from Nepal.
An example of a ridge is along an animal's backbone.

See ridge in Webster's New World College Dictionary

noun

Obsolete an animal's spine or back
the long, narrow top or crest of something, as of an animal's back, a wave, a mountain, etc.
a long, narrow elevation of land or a similar range of hills or mountains
any raised line or raised narrow strip, as in corded fabric, plowed land, etc.
the horizontal line formed by the meeting of two sloping surfaces: the ridge of a roof
a long, narrow high-pressure area on a weather map

Origin: ME rigge < OE hrycg, akin to ON hrygr, backbone, Ger rücken, back < IE *(s)kreuk-, a hump, mound < base *(s)ker-, to bend > L curvus, bent, circus, a ring

transitive verb, intransitive verb ridged, ridging

to mark or be marked with a ridge or ridges
to form into or furnish with a ridge or ridges

See ridge in American Heritage Dictionary 4

noun

A long, narrow upper section or crest: the ridge of a wave.
A long, narrow chain of hills or mountains. Also called ridgeline.
A long, narrow elevation on the ocean floor.
Meteorology An elongated zone of relatively high atmospheric pressure. Also called wedge.
A long, narrow, or crested part of the body: the ridge of the nose.
The horizontal line formed by the juncture of two sloping planes, especially the line formed by the surfaces at the top of a roof.
A narrow, raised strip, as in cloth or on plowed ground.