trachealis

noun
tra·​che·​a·​lis | \ ˌtrā-kē-ˈā-ləs How to pronounce trachealis (audio) , -ˈal-əs How to pronounce trachealis (audio) \
plural tracheales\ -​ˈā-​(ˌ)lēz How to pronounce tracheales (audio) , -​ˈal-​(ˌ)ēz How to pronounce tracheales (audio) \

Medical Definition of trachealis

: a muscle associated with the trachea that in humans consists of smooth muscle fibers extending transversely between the ends of the tracheal rings and the intervals between them at the back of the trachea

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