a. rare. [f. prec. + -AL 1.] Of, pertaining to, or of the nature of, an aorta.
1836–9. Todd, Cycl. Anat. & Phys., II. 978/1. The thoracic or aortal portion of the heart.
1839. Bailey, Festus, iv. (1848), 1. A wimpling streamlet ere its waters grow To size aortal.
1842. Johnson, Farmer’s Cycl., s.v., Aortal Arteries of vegetables. The large vessels destined to convey the elaborated juice … of plants … So denominated by Dr. Darwin.
