#1 suction n. a force over an area produced by a pressure difference. wn
#2 suction v. remove or draw away by the force of suction; "the doctors had to suction the water from the patient's lungs". wn
#3 suction n. [sucking, suck] the act of sucking. wn
#4 suction v. empty or clean (a body cavity) by the force of suction; "suction the uterus in an abortion". wn
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