arches Definition

to cover or provide with an arch

to form into an arch

to form an arch

a typically curved structural member spanning an opening and serving as a support (as for the wall or other weight above the opening)

something resembling an arch in form or function; especially : either of two vaulted portions of the bony structure of the foot that impart elasticity to it

something that has a curved shape like an arch

area of eroded natural arch formations in eastern Utah

one of the arterial branches in vertebrate embryos that exist in a series of pairs with one on each side of the embryo, connect the ventral arterial system lying anterior to the heart to the dorsal arterial system above the digestive tract, and persist in adult fishes but are reduced or much modified in the adult of higher forms

arch of the aorta

the curved part of the aorta that connects the ascending aorta with the descending aorta and from which the brachiocephalic artery, left carotid artery, and left subclavian artery arise —called also aortic arch

any of the bony or cartilaginous arches or curved bars extending dorsoventrally and placed one behind the other on each side of the pharynx and supporting the gills of fishes and amphibians

any of the rudimentary ridges in the embryos of all higher vertebrates that correspond to the gill arches

a pointed arch; especially : one with a joint instead of a keystone at its apex

an acutely pointed arch

an arch of bone or cartilage of a vertebra that is situated posterior to a vertebral body, is formed by the fusion of two pedicles and two laminae, and along with the back portion of the vertebral body forms a vertebral foramen through which the spinal cord passes —called also vertebral arch

a low elliptical 3-, 4-, or 5-centered arch; especially : a 4-centered pointed arch