coccyx
Coccyx (noun) means the small, triangular bone at the very bottom of the spine, formed from fused vertebrae; the tailbone. Example: “She fractured her coccyx after slipping on the ice.”
How to use coccyx
Learner’s notesIn plain EnglishThe tailbone, at the bottom of the spine.
Word forms
- Plural
- coccyges
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She fractured her _____ after slipping on the ice.
Etymology
From Greek kokkyx, "cuckoo" — an ancient anatomist thought the bone's curve resembled a cuckoo's beak.
Synonyms
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