Suction :  (noun)
1: a force over an area produced by a pressure difference
2: the act of sucking [syn: sucking, suck]
Suction : (verb)
1: remove or draw away by the force of suction; "the doctors had to suction the water from the patient's lungs"
2: empty or clean (a body cavity) by the force of suction; "suction the uterus in an abortion"

aspiration, bleeding, bloodletting, broaching, cupping, drafting, drag, drainage, draining, drawing, emptying, favor, inhalation, inhalement, inside track, inspiration, interest, milking, phlebotomy, pipetting, pull, pumping, siphoning, sniff, sniffle, snuff, snuffle, special favor, suck, sucking, tapping, venesection,