coccyx

coc·cyx  (kksks) n. pl. coc·cy·ges (kk-sjz, kks-jz) A small triangular bone at the base of the spinal column in humans and tailless apes, consisting of several fused rudimentary vertebrae. Also called tailbone. [New Latin, from Greek kokkx, cuckoo, coccyx (from its resemblance to a cuckoo's beak).]

coccyx

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coccyx [kok-six, kok-sije-eez]

Noun

pl coccyges Anat a small triangular bone at the base of the spine in human beings and some apes [Greek kokkux cuckoo, from its likeness to a cuckoo's beak]

coccygeal adj

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coccyx  (kksks)

Plural coccyges (kk-sjz, kks-jz)

A small triangular bone at the base of the spine in humans and apes. It is composed of several fused vertebrae. Also called tailbone.

Thesaurus

Noun

1.

coccyx - the end of the vertebral column in humans and tailless apes tail bone bone, os - rigid connective tissue that makes up the skeleton of vertebrates spinal column, spine, vertebral column, rachis, backbone, back - the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back" caudal vertebra, coccygeal vertebra - one of 4 vertebrae in the human coccyx pelvic arch, pelvic girdle, pelvis, hip - the structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebrates