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Definition of sacrococcyx
sacrococcyx
/ˌseɪ.kroʊˈkɑːk.sɪks/
sa · cro · coc · cyx
Plural:sacrococcyges
•Adjective:sacrococcygeal
sacrococcyx Lexical Profile
CEFR
C2
Grade
13
Tier
3
Usage
Rare
• noun
1
The composite anatomical structure comprising the sacrum and the coccyx, forming the lower extremity of the vertebral column in humans and some other animals.
Example
"The MRI scan revealed a small benign mass situated anterior to the patient's sacrococcyx."
Synonyms
View all synonyms for sacrococcyx• Rhymes for sacrococcyx
• Nearby Words
Word Origin & Etymology
Formed by combining the prefix 'sacro-' from Latin 'sacrum' (sacred bone) and 'coccyx' from Greek 'kokkyx' (cuckoo, referring to the bone's beak-like shape).
Cite this Entry
Wordmom. (2026). Definition of Sacrococcyx. In Wordmom Dictionary. Retrieved Oct 18, 2026, from https://wordmom.com/dictionary/sacrococcyx