bulbus arteriosus

noun
bulbus ar·​te·​ri·​o·​sus | \ -(ˌ)ärˌtirēˈōsə̇s \
variants: or less commonly bulbus aortae \ -​āˈȯrˌtē \

Definition of bulbus arteriosus

: the dilated part of the aorta just in front of the heart from which the aortic arches arise in vertebrate embryos and in the adult of many lower vertebrates

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History and Etymology for bulbus arteriosus

New Latin bulbus arteriosus, literally, arterial bulb & bulbus aortae, literally, bulb of the aorta

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Cite this Entry

“Bulbus arteriosus.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/bulbus%20arteriosus. Accessed 12 December 2019.

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