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coccyx

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


Example Sentences

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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

Around the age of 70, the sacrum and the coccyx may fuse together.

From Textbooks ● Jun. 9, 2022

The vertebral column consists of 24 bones, each called a vertebra, plus the sacrum and coccyx.

From Textbooks ● Jun. 19, 2013

In some cases there is a definite history of injury, such as a kick or blow, causing fracture of the coccyx, or dislocation of the sacro-coccygeal joint.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Alexander Miles

They are joined at the coccyges and sacra, and the spinal columns have nearly the same axis.

From Essays In Pastoral Medicine by Austin ?Malley

The twins are joined only by the latero-posterior aspects of the sacra and coccyges, so that the two individuals are placed almost back to back.

From Essays In Pastoral Medicine by Austin ?Malley


Vocabulary lists containing coccyx

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