Suction - Definition
suction
n 1: a force over an area produced by a pressure difference
2: the act of sucking [syn: sucking, suck, suction]
v 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"