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Showing results for coccyx. Search instead for cocco.
Definitions

coccyx

[kok-siks] / ˈkɒk sɪks /
NOUN
small of the back
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The boy was fifteen, skinny, almost malnourished, so that the hip bones and coccyx stood out sharply.

From The Wall Street Journal • Nov. 11, 2025

Following this evolutionary split, the group of apes that includes present-day humans evolved the formation of fewer tail vertebrae, giving rise to the coccyx, or tailbone.

From Science Daily • Feb. 28, 2024

The coccyx is attached to the inferior end of the sacrum.

From Textbooks • Jun. 19, 2013

Similarly, the coccyx, or tailbone, results from the fusion of four small coccygeal vertebrae.

From Textbooks • Jun. 19, 2013

At a certain stage of human development, as in the tadpole, the tail disappears, the nine vertebræ forming the coccyx unite together and become a very diminutive bone which loses nearly all vertebral characteristics.

From Degeneracy Its Causes, Signs and Results by Talbot, Eugene S.