ridge

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ridge

 [rij]
a linear projection or projecting structure; a crest.
alveolar ridge a bony ridge of the maxilla or mandible, the part of the alveolar process that contains the alveoli; called also alveolar crest.
dental ridge any linear elevation on the crown of a tooth.
Dental ridges in a maxillary molar. From Dorland's, 2000.
dermal r's ridges of the skin produced by the projecting papillae of the corium on the palm of the hand and sole of the foot, producing a fingerprint and footprint characteristic of the individual; called also cristae cutis.
genital ridge the more medial part of the urogenital ridge, giving rise to the gonad.
healing ridge an indurated ridge that normally forms deep to the skin along the length of a healing wound.
incisal ridge the part of the crown of an anterior tooth that makes up the actual incisal portion; see incisal surface, under surface.
interureteric ridge a fold on mucous membrane extending across the bladder between the ureteric orifices.
mammary ridge an ectodermal thickening in early embryos, along which the mammary glands subsequently develop.
mesonephric ridge the more lateral portion of the urogenital ridge, giving rise to the mesonephros.
oblique ridge a variable linear elevation obliquely crossing the occlusive surface of a maxillary molar.
urogenital ridge a longitudinal ridge in the embryo, lateral to the mesentery.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ridge

(rij), [TA]
1. A linear elevation, usually rough.
See also: crest.
2. dentistry any linear elevation on the surface of a tooth.
3. The remainder of the alveolar process and its soft tissue covering after the teeth are removed.
[A. S. hyrcg, back, spine]
Farlex Partner Medical Dictionary © Farlex 2012

ridge

(rĭj)
n.
A long, narrow, or crested part of the body: the ridge of the nose.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

ridge

(rij) [TA]
1. A linear elevation.
See also: crest
2. dentistry Any linear elevation on the surface of a tooth.
3. The remainder of the alveolar process and its soft tissue covering after the teeth are removed.
[A. S. hyrcg, back, spine]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

ridge

(rij) [TA]
1. Linear elevation, usually rough.
See also: crest
2. In dentistry, any linear elevation on tooth surface.
3. Remainder of alveolar process and its soft tissue covering after teeth are removed.
[A. S. hyrcg, back, spine]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about ridge

Q. what causes ridges in fingernails center of nail is splitting down the middle toward the nail bed.

A. Vertical ridges that appear on the nail can indicate disorders as simple as iron deficiency, poor absorption of vitamins and nutrients, overall poor health or they could indicate something as serious as kidney trouble.
it might be wise to get a blood test.

More discussions about ridge
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References in periodicals archive ?
Australian slang for "the real thing," the ridgy didge turned out to be a crepe filled with a gloriously tooth rotting combination of banana, rum, cinnamon and maple syrup topped with lashings of cream and ice cream.
In fact, one investor explained the reason why he had used a tax agent: I thought that if an accountant did your tax you were less likely to be audited because the tax accountant themselves went through a reasonable amount of due process to make sure it was all ridgy didge and above board.
The wide ridgy spandrel under the above peaks is obvious, which is as a result of quenching to room temperatures, leading to a phase of intermediate order between the amorphous phase and the crystalline phase, i.e., a mixed polymorphic structure.
We have grown used to seeing this material as tight, ridgy spheres of brownish black, small, flattened calcite crystals, sometimes as individual spheres to maybe a centimeter or two across, sometimes as grapelike clusters of spheres - fairly presentable but not beautiful, mostly just "odd." But these new specimens, of which about 200 are said to have recently come out of the Herja mine, are truly beautiful (if still odd): curved, satiny-lustrous, flattened calcite rhombs forming spheres to 4 cm across, in grape-bunches to 10 cm across; a few of these, offered at the Hawthorneden stand at the Main Show, rest on matrix of massive quartz and galena.
Till on the ridgy wave afar Comes the lone vessel, labouring slow, Spreading the white foam in the air, With sail and top-mast bending low.
"I got an inkling after the City game that Ridgy was out and I might get put back there.