1. suction - Noun
2. suction - Verb
The act or process of sucking; the act of drawing, as fluids, by exhausting the air.
Source: Webster's dictionarysuction the uterus in an abortion Source: Internet
the doctors had to suction the water from the patient's lungs Source: Internet
1992 stunt Aerial shot of the arch On September 14, 1992, 25-year-old John C. Vincent climbed to the top of the Gateway Arch using suction cups and proceeded to parachute back to the ground. Source: Internet
A central vacuum typically produces greater suction than common portable vacuum cleaners because a larger fan and more powerful motor can be used when they are not required to be portable. Source: Internet
A lever operates a powerful fan and a suction hole slides open: the air stream carries the waste away. Source: Internet
An external relief valve in the discharge line, with a return line back to the suction line or supply tank provides increased safety. Source: Internet