from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A conical extension of the right ventricle in the heart of mammals, from which the pulmonary artery originates.
- n. An extension of the ventricle in the heart of amphibians and certain fish.
New Latin cōnus artēriōsus : Latin cōnus, cone + Medieval Latin artēriōsus, arterial.(American Heritage® Dictionary of the English Language, Fourth Edition)