abscisate beta-glucosyltransferase / act of God

plural of aortic arch

(anatomy) The curving portion of the aorta that bends between the ascending aorta and the descending aorta, from which the brachiocephalic artery, left carotid artery, and left subclavian artery arise.

(anatomy) The semilunar valve of the heart that lies between the left ventricle and the aorta.

plural of aortic valve

(medicine) Extensive atherosclerotic calcification of the ascending aorta or aortic arch.

(medicine, colloquial) Aortic regurgitation.

Alternative form of ovoo (“Mongolian cairn”)

plural of AoA

(aviation) Initialism of angle of attack. / (dating) Initialism of age of attraction.