|1.||(of a pupa) enclosed in a hard barrel-shaped case (puparium), as in the housefly|
|2.||crowded or pressed together; constricted|
|3.||pathol (esp of the aorta) to become narrower; become constricted|
|[C15: from Latin coarctāre, to press together, from artus tight]|
coarctate co·arc·tate (kō-ärk'tāt')
Constricted, narrowed, or compressed, as a segment of a blood vessel.