Medical Dictionary

truncus arteriosus

noun truncus ar·te·ri·o·sus \ -är-ˌtir-ē-ˈō-səs \

medical Definition of truncus arteriosus

: the part of the embryonic arterial system which develops into the ascending aorta and the pulmonary trunk

Seen and Heard

What made you want to look up truncus arteriosus? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

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

Love words? Need even more definitions?

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