suction

1 of 2

noun

suc·​tion ˈsək-shən 

1

: the act or process of sucking

2

a

: the act or process of exerting a force upon a solid, liquid, or gaseous body by reason of reduced air pressure over part of its surface

b

: force so exerted

3

: a device (such as a pipe or fitting) used in a machine that operates by suction

suctional

ˈsək-sh(ə-)nəl 

adjective

suction

2 of 2

verb

suctioned; suctioning; suctions

transitive verb

: to remove (as from a body cavity or passage) by suction

Examples of suction in a Sentence

Noun

The vacuum cleaner picks up dirt by suction.

The octopus grasps things using suction.

a vacuum cleaner with enough suction to pick up the heaviest particles of dirt

Verb

The surgeon will suction blood out of the area.

Recent Examples on the Web

Noun

Its Blast airflow system delivers 16,600Pa of suction, and the Ozmo Roller mop spins at 220 rpm with pressure that's 16 times stronger than standard mops. —PC Magazine, 22 Nov. 2025

Other accolades include the 22,000 Pa suction power and a mop head that can clean as fast as 200 RPM. —Nashia Baker, Architectural Digest, 21 Nov. 2025

Verb

Shoppers appreciate its quiet yet powerful motor and ability to suction up dirt other vacuums miss. —Mariana Best, Better Homes & Gardens, 13 Nov. 2025

That is, suctioning fat from one area and injecting it someplace else. —Mary Roach, Wired News, 10 Nov. 2025

Word History

Etymology

Noun

Late Latin suction-, suctio, from Latin sugere to suck — more at suck

First Known Use

Noun

1626, in the meaning defined at sense 1

Verb

1954, in the meaning defined above

Phrases Containing suction

• suction cup
• suction pump
• suction stop

Rhymes for suction

• duction
• ruction
• abduction
• adduction
• conduction
• construction
• deduction
• destruction
• eduction
• induction
• instruction
• obstruction

Kids Definition

suction

noun

suc·​tion

ˈsək-shən

1

: the act or process of sucking

2

a

: the action or process of drawing something (as liquid or dust) into a space (as a vacuum cleaner or a pump) by removing air from the space

b

: the force caused by suction

Medical Definition

suction

1 of 2 noun

suc·​tion ˈsək-shən 

1

: the act or process of sucking

2

a

: the act or process of exerting a force upon a solid, liquid, or gaseous body by reason of reduced air pressure over part of its surface

b

: force so exerted

3

: the act or process of removing secretions or fluids from hollow or tubular organs or cavities by means of a tube and a device (as a suction pump) that operates on negative pressure

suction

2 of 2 transitive verb

: to remove from a body cavity or passage by suction