![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Suction-lifter-one-cup.jpg/640px-Suction-lifter-one-cup.jpg&w=640&q=50)
Suction cup
device or object that uses the negative fluid pressure of air or water to adhere to nonporous surfaces, creating a partial vacuum / From Wikipedia, the free encyclopedia
A suction cup, also known as a sucker, is an object that uses the negative fluid pressure of air or water to stick to surfaces, creating a partial vacuum.[1]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Suction-lifter-one-cup.jpg/640px-Suction-lifter-one-cup.jpg)
Suction cups are inspired by the ones used by octopuses and squids.[2]