coccyx

(redirected from tail bone)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to tail bone: Tailbone pain

coccyx

 [kok´siks]
the small bone caudad to the sacrum in humans, formed by the union of four (sometimes five or three) rudimentary vertebrae, and forming the caudal end of the vertebral column.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

coc·cyx

, gen.

coc·cy·gis

, pl.

coc·cy·ges

(kok'siks, -si-jis, -si-jēs), [TA] Avoid the mispronunciations kok'iks and kos'iks.
The small bone at the end of the vertebral column in humans, formed by the fusion of four rudimentary vertebrae; it articulates above with the sacrum.
[G. kokkyx, a cuckoo, the coccyx]
Farlex Partner Medical Dictionary © Farlex 2012

coccyx

(kŏk′sĭks)
n. pl. coccyges (kŏk-sī′jēz, kŏk′sĭ-jēz′)
A small triangular bone at the base of the spinal column in humans and other apes, consisting of several fused rudimentary vertebrae. Also called tailbone.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

coc·cyx

, pl. coccyges (kok'siks, -si-jēz) [TA]
The small bone at the end of the vertebral column in humans, formed by the fusion of four rudimentary vertebrae; it articulates above with the sacrum.
[G. kokkyx, a cuckoo, the coccyx]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

coccyx

The rudimentary tail bone, consisting of four small vertebrae fused together and joined to the curved SACRUM. From the resemblance of the bone to a cuckoo's beak.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

coccyx

the fusion of the posterior vertebrae to form a single unit, the coccyx. In humans three to five vertebrae are involved and these form the remnant of a tail.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Coccyx

The last bone of the spinal column, consisting of three to five fused vertebrae that connect with the sacrum, a part of the pelvis.
Mentioned in: Coccyx Injuries
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The other 2 curves bend towards the back (at the center of our backs where we "slouch" and at the tail bone).
THIS op on your "tail bone" is fairly routine and you'll be home in a day or two.
Anatomists have bestowed Latin-derived names on nearly every bone in the human body, from the tail bone (coccyx) to the thumb (pollex) and pinkie finger (digitus minimus).
The new dinosaur is named Mnyamawamtuka moyowamkia (Mm-nya-ma-wah-mm-too-ka mm-oh-yo-wa-mm-key-ah), a name derived from Swahili for "animal of the Mtuka (with) a heart-shaped tail" in reference to the name of the riverbed (Mtuka) in which it was discovered and due to the unique shape of its tail bones.
For instance, "gomtang," which is a stew boiled with beef bones and other parts of a cow, is translated as "oxtail soup," which is not entirely wrong because many times tail bones are used, but not accurate to describe the dish in general.
A close examination of the tail bones of Carnotaurus showed its caudofemoralis muscle had a tendon that attached to its upper leg bones.
A partial skeleton of Balaur, including leg, hip, vertebrae, arms, rib and tail bones, was unearthed from a former floodplain near the city of Sebes in central Romania.
It lived in what is now northern China, where scientists from the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing found most of its leg and tail bones. The team also found part of its lower jaw and spine.
Xu and his colleagues recovered most of the creature's limb and tail bones as well as partial remains of its lower jaw and spinal column.
The tail bones are so small that they are not amenable to standard pin or plate fixation that might be used to fix a fractured leg.
One particularly well-preserved skeleton is missing only some hand, foot, and tail bones.