plural of relieving arch

plural of antitwilight arch

Synonym of belt of Venus (“atmospheric phenomenon”)

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.

plural of skew arch

an arch constructed at an angle other than a right angle

(architecture) An arch built in the body of a wall to relieve the pressure, as over a door or window.

plural of safety arch

(anatomy) The position of a vertebra enclosing and protecting the heart and other viscera.