coccygeal

coccyx

[kok-siks]
noun, plural coccyges [kok-sahy-jeez, kok-si-jeez] .
1.
a small triangular bone forming the lower extremity of the spinal column in humans, consisting of four ankylosed rudimentary vertebrae. See diag. under spinal column.
2.
a corresponding part in certain animals.

Origin:
1605–15; < Neo-Latin < Greek kókkyx cuckoo, from its resemblance to a cuckoo's beak

coccygeal [kok-sij-ee-uhl, -sij-uhl] , adjective
intercoccygeal, adjective
precoccygeal, adjective
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World English Dictionary
coccyx (ˈkɒksɪks)
 
n , pl coccyges
a small triangular bone at the end of the spinal column in man and some apes, representing a vestigial tail
 
[C17: from New Latin, from Greek kokkux cuckoo, of imitative origin; from the likeness of the bone to a cuckoo's beak]
 
coccygeal
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

coccyx
1615, from Gk. kokkyx "cuckoo" (from kokku, like the bird's Eng. name echoic of its cry), so called by ancient Gk. physician Galen because the bone in humans supposedly resembles a cuckoo's beak.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

coccygeal coc·cyg·e·al (kŏk-sĭj'ē-əl)
adj.
Relating to the coccyx.

coccyx coc·cyx (kŏk'sĭks)
n. pl. coc·cy·ges (kŏk-sī'jēz, kŏk'sĭ-jēz')
The small triangular bone located at the base of the spinal column, formed by the fusion of four rudimentary vertebrae, and articulating above with the sacrum. Also called tailbone.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
coccyx   (kŏk'sĭks)  Pronunciation Key 
Plural coccyges (kŏk-sī'jēz, kŏk'sĭ-jēz')
A small triangular bone at the base of the spine in humans and apes. It is composed of several fused vertebrae. Also called tailbone.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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