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[rij] /rɪdʒ/
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.
Origin of ridge
before 900; Middle English rigge (noun), Old English hrycg spine, crest, ridge; cognate with Dutch rug, German Rücken, Old Norse hryggr
Related forms
ridgelike, adjective
unridged, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for ridged
Historical Examples
  • This was ridged somewhat like a brain, but the green shape had still darker nodules and extensions.

    Planet of the Damned Harry Harrison
  • The face which was thrust into the Commissioner's was ridged and veined with passion.

  • His body was ridged and laced with muscles that had grown to seasoned sinews from swinging a sledge in a blacksmith-shop.

  • The wall beside us had been smooth, but now it was broken and ridged.

    Beyond the Vanishing Point Raymond King Cummings
  • They rolled down on the canoe, ridged with foam, and it needed quick work with the paddle to help her over them.

    For the Allinson Honor Harold Bindloss
  • His fingers felt the ridged wrappings and the smooth, warm stone of the bowl.

    Shaman Robert Shea
  • That ridged spear above him, many will there be unto whom to-night, before the Hostel, it will deal drinks of death.

  • It seemed half maniacal, it was so ridged with bright eagerness.

    Rhoda Fleming, Complete George Meredith
  • It left Blue Blazes ridged with welts, trembling, fright sickened.

    Horses Nine Sewell Ford
  • It is clothed in a smooth, brown bark, ridged only in older trees.

    American Forest Trees Henry H. Gibson
British Dictionary definitions for ridged


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
any long narrow raised strip or elevation, as on a fabric or in ploughed land
(anatomy) any elongated raised margin or border on a bone, tooth, tissue membrane, etc
  1. the top of a roof at the junction of two sloping sides
  2. (as modifier): a ridge tile
the back or backbone of an animal, esp a whale
(meteorol) an elongated area of high pressure, esp an extension of an anticyclone Compare trough (sense 4)
to form into a ridge or ridges
Derived Forms
ridgelike, adjective
ridgy, adjective
Word Origin
Old English hrycg; related to Old High German hrucki, Old Norse hryggr
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for ridged



Old English hrycg "back of a man or beast," probably reinforced by Old Norse hryggr "back, ridge," from Proto-Germanic *khrugjaz (cf. Old Frisian hregg, Old Saxon hruggi, Dutch rug, Old High German hrukki, German Rücken "the back"), of uncertain origin. Also in Old English, "the top or crest of anything," especially when long and narrow. The connecting notion is of the "ridge" of the backbone. Spelling with -dg- is from late 15c. Ridge-runner "Southern Appalachian person" first recorded 1917.

Online Etymology Dictionary, © 2010 Douglas Harper
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ridged in Medicine

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.
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ridged in Science
  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.
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