Longman Dictionary of Contemporary English homepage

Topic: TECHNOLOGY

Date: 1600-1700
Language: Late Latin
Origin: suctio, from Latin sugere 'to suck'

suction

noun
     
suc‧tion [uncountable]
1T the process of removing air or liquid from an enclosed space so that another substance is sucked in, or so that two surfaces stick together:
My vacuum cleaner has very good suction.
2 the force that causes a substance to be sucked into a closed space when the air or liquid already present is removed
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