"suction" in the noun sense
a force over an area produced by a pressure difference
2. sucking, suck, suction
the act of sucking
"suction" in the verb sense
remove or draw away by the force of suction
"the doctors had to suction the water from the patient's lungs"
empty or clean (a body cavity) by the force of suction
"suction the uterus in an abortion"
Source: WordNet® (An amazing lexical database of English)
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