Coccyx Definition

kŏksĭks
coccyges, coccyxes
noun
A small, triangular bone at the lower end of the vertebral column, formed by the fusion of four rudimentary vertebrae and articulating with the sacrum.
Webster's New World
Synonyms:
tail-bone

Other Word Forms of Coccyx

Noun

Singular:
coccyx
Plural:
coccyges, coccyxes

Origin of Coccyx

  • From Ancient Greek κόκκυξ (kokkuks, “cuckoo”), referring to the curved shape of a cuckoo's beak when viewed from the side.

    From Wiktionary

  • New Latin coccȳx from Greek kokkūx cuckoo, coccyx (from its resemblance to a cuckoo's beak)

    From American Heritage Dictionary of the English Language, 5th Edition

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