spur

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spur

 [sper]
1. a spiked object or goad.
2. a projecting body, as from a bone; called also calcar.
Calcaneal (heel) spur. From Frazier et al., 2000.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

cal·car

(kal'kar), [TA]
1. A small projection from any structure; internal spurs (septa) at the level of division of arteries and confluence of veins when branches or roots form an acute angle.
See also: vascular spur.
2. A dull spine or projection from a bone.
Synonym(s): spur [TA]
[L. spur, cock's spur]
Farlex Partner Medical Dictionary © Farlex 2012

spur

(spûr)
n.
A spine or projection from a bone.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

spur

Orthopedics A bony projection often arising in a calcified tendon. See Calcaneal spur.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

cal·car

(kal'kahr) [TA]
1. A small projection from any structure; internal spurs (septa) at the level of division of arteries and confluence of veins when branches or roots form an acute angle.
2. A spine or projection from a bone.
Synonym(s): spur.
[L. spur, rooster's spur]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

spur

  1. a short shoot on which flowers are borne.
  2. an extension of a leafbase below its point of attachment to the petiole.
  3. a hollow, conical projection from the base of a petal, as in the larkspur.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Spur

Any projection from a bone.
Mentioned in: Rotator Cuff Injury
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Mounding plants with spurless, semidouble blooms of vibrant coppery red.
The Bodyguard 380's exposed spurless hammer, which cannot be cocked, lies within the rear of the 416 steel slide.
The resulting .436 Dean and Adams was a five-shot percussion revolver with a spurless hammer--the first revolver with a solid frame.
As the trouser pockets get tighter, you reach the point where you would need your tactical folder to cut your mini-Glock loose, but the PM9 can still be drawn, albeit with more difficulty than a "hammerless" or spurless hammer small-frame revolver.
The "Para Carry" subcompact pistol holds six rounds of .45 ACP, has a 3-inch barrel, spurless hammer, and is made from corrosion-resistant stainless steel.
A spurless hammer and the bobbed Carry Option tang and grip safety greatly enhance the pistol's concealed-carry capabilities, while extended, ambidextrous safety levers make it a practical choice for southpaw shooters.
Then there is the spurless hammer that reduces bulk and is the epitome of "snag-free." With the hammer spur completely removed there's no longer any chance of hammer bite, so Para-Ordnance thoughtfully blended the grip safety tang to the frame.
Because the hammer is spurless and flat to the frame when at rest, the grip tang is the shortest and most concealable that has ever been offered on a practical 1911 pistol.
The Para Carry 9's bobbed frame tang and spurless hammer make for a snag-flee exterior and smooth presentations from concealment.