Simple Definition of tailbone

from our Learner's Dictionary

tailbone

noun

ˈteɪlˌboʊn

plural tailbones

: the small bone at the end of the spine : coccyx

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“Tailbone.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/tailbone. Accessed 22 Jun. 2026.

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