(~s, ~ing, ~ed)
1.
Suction is the process by which liquids, gases, or other substances are drawn out of somewhere.
Dustbags act as a filter and ~ will be reduced if they are too full...
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2.
If a doctor or nurse ~s a liquid, they remove it by using a machine which sucks it away.
Michael was showing the nurse how to ~ his saliva...
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3.
Suction is the process by which two surfaces stick together when the air between them is removed.
...their pneumatic robot which uses air to move and sticks to surfaces by ~.
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