gasket

noun

gas·​ket ˈga-skət 

: a material (such as rubber) or a part (such as an O-ring) used to make a joint fluid-tight

see also:

blow a gasket

Examples of gasket in a Sentence

Recent Examples on the Web

Also, Fellow designed the lid to be gasket-tight so there’s minimal heat loss. — Brianna Plaza, Bon Appetit Magazine, 5 Nov. 2026

Rubber gaskets and seals help prevent leaks, especially in front-load models. — Mary Cornetta, Better Homes & Gardens, 4 Nov. 2026

Cleaning guides routinely single out lid gaskets, spouts and straws as the hardest parts of a reusable bottle to keep hygienic, and a 2025 study of bottles used by medical students found coliform bacteria in nearly half of the samples tested. — New Atlas, 14 Oct. 2026

This set of three comes with small, medium, and large canisters, and the silicone gaskets inside each lid give them an airtight seal to keep pantry staples like baking soda, sugar, and flour fresh. — Caley Sturgill, Southern Living, 8 Oct. 2026

Word History

Etymology

perhaps modification of French garcette

First Known Use

circa 1889, in the meaning defined above

Phrases Containing gasket

• blow a gasket

Kids Definition

gasket

noun

gas·​ket ˈgas-kət 

: a material (as rubber) or a part used to prevent a joint from leaking