✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

sternomastoid muscle

noun

ster·​no·​mas·​toid muscle -ˈmas-ˌtȯid- How to pronounce sternomastoid muscle (audio)

Browse Nearby Words

Cite this Entry

“Sternomastoid muscle.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/sternomastoid%20muscle. Accessed 26 Nov. 2025.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!