a long, narrow elevation of land; a chain of hills or mountains.
the long and narrow upper edge, angle, or crest of something, as a hill, wave, or vault.
the back of an animal.
any raised, narrow strip, as on cloth.
the horizontal line in which the tops of the rafters of a roof meet.
(on a weather chart) a narrow, elongated area of high pressure.
verb (used with object), ridged, ridging.
to provide with or form into a ridge or ridges.
to mark with or as if with ridges.
verb (used without object), ridged, ridging.
to form ridges.

before 900; Middle English rigge (noun), Old English hrycg spine, crest, ridge; cognate with Dutch rug, German Rücken, Old Norse hryggr

ridgelike, adjective
unridged, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To ridged
World English Dictionary
ridge (rɪdʒ)
1.  a long narrow raised land formation with sloping sides esp one formed by the meeting of two faces of a mountain or of a mountain buttress or spur
2.  any long narrow raised strip or elevation, as on a fabric or in ploughed land
3.  anatomy any elongated raised margin or border on a bone, tooth, tissue membrane, etc
4.  a.  the top of a roof at the junction of two sloping sides
 b.  (as modifier): a ridge tile
5.  the back or backbone of an animal, esp a whale
6.  meteorol Compare trough an elongated area of high pressure, esp an extension of an anticyclone
7.  to form into a ridge or ridges
[Old English hrycg; related to Old High German hrucki, Old Norse hryggr]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

O.E. hrycg "back of a man or beast," probably reinforced by O.N. hryggr "back, ridge," from P.Gmc. *khrugjaz (cf. O.Fris. hregg, O.S. hruggi, Du. rug, O.H.G. hrukki, Ger. Rücken "the back"), of uncertain origin. Also in O.E., "the top or crest of anything," especially when long and narrow. The connecting
notion is of the "ridge" of the backbone. Ridge-runner "Southern Appalachian person" first recorded 1917.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

ridge (rĭj)
A long, narrow, or crested part of the body, as on the nose.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
ridge   (rĭj)  Pronunciation Key 
  1. A long narrow chain of hills or mountains.

  2. See mid-ocean ridge.

  3. A narrow, elongated zone of relatively high atmospheric pressure associated with an area of peak anticyclonic circulation. Compare trough.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Cylinder shapes, either ridged or smooth, hold sauce on the inside and outside.
If you haven't noticed already, check out the sinuous, double-ridged feature in the center-top of the photo.
Position the cap on your thumb so that the ridged side is facing down.
In the future, the group plans to investigate the cellular composition of the
  plants' uniquely ridged leaves.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature