tailbone

noun

tail·​bone ˈtāl-ˌbōn How to pronounce tailbone (audio)
1
: a caudal vertebra
2
: coccyx

Examples of tailbone in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This caused an already off-balance Adebayo to fall clumsily to the ground and land directly on his tailbone. Scott Fowler, Charlotte Observer, 15 Apr. 2026 Linzey Strommen broke her tailbone while roller-skating to a Taylor Swift song at her daughter’s birthday party two years ago. Meredith Wilshere, PEOPLE, 11 Apr. 2026 Over development, the tail disappears, fusing to form the coccyx or tailbone. Scott Lafee, San Diego Union-Tribune, 3 Mar. 2026 Then reverse the movement by dropping your belly toward the floor, lifting your chest, and tipping your tailbone up toward the ceiling. Stephanie Anderson Witmer, Health, 26 Feb. 2026 See All Example Sentences for tailbone

Word History

First Known Use

circa 1577, in the meaning defined at sense 1

Time Traveler
The first known use of tailbone was circa 1577

Browse Nearby Words

Cite this Entry

“Tailbone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tailbone. Accessed 18 Apr. 2026.

Kids Definition

tailbone

noun
tail·​bone ˈtā(ə)l-ˌbōn How to pronounce tailbone (audio)
: coccyx

Medical Definition

tailbone

noun
tail·​bone -ˈbōn, -ˌbōn How to pronounce tailbone (audio)
1
: a caudal vertebra
2
: coccyx

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