ser·​ra·​tus se-ˈrāt-əs How to pronounce serratus (audio)
plural serrati -ˈrā-ˌtī How to pronounce serratus (audio)
: any of three muscles of the thorax that have complex origins but arise chiefly from the ribs or vertebrae:

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Cite this Entry

“Serratus.” Medical Dictionary, Merriam-Webster, Accessed 10 Dec. 2023.

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