suction cup

noun

: a cup-shaped device in which a partial vacuum can be produced when applied to a surface

Examples of suction cup in a Sentence

The device is held to the wall with two suction cups.

Recent Examples on the Web

The giant planarian’s mouth is white and looks like a suction cup. —Aspen Pflughoeft, Miami Herald, 3 Sep. 2025

According to her summary of the fatal incident, the toddler was playing with a suction cup bowl by sticking it onto a mirror and pulling it back and forth. —Zoey Lyttle, People.com, 25 Aug. 2025

SlipX Solutions Bottomless Bath Drain Cover This bath drain cover works exactly like a suction cup, installing over the tub drain to stop bath water from slowly leaking out. —Stephanie Osmanski, Better Homes & Gardens, 20 Aug. 2025

Cellphone stands designed for vehicle use typically feature a sticky bottom, which can be in the form of a suction cup, a nonskid silicone or rubber pad or a sticker. —Bestreviews, Mercury News, 13 Aug. 2025

Word History

First Known Use

1942, in the meaning defined above

Rhymes for suction cup

• buttercup
• backup
• blowup
• breakup
• buildup
• checkup
• cleanup
• holdup
• hookup
• lineup
• lockup
• makeup

Kids Definition

suction cup

noun

: a cup of glass or of a flexible material (as rubber) in which a partial vacuum is produced when applied to a surface

Medical Definition

suction cup

noun

: a cup of glass or of a flexible material (as rubber) in which a partial vacuum is produced when applied to a surface and which is used variously (as to bring blood to the surface of the skin)