silicone

noun

sil·​i·​cone ˈsi-lə-ˌkōn 

: any of various polymeric organic silicon compounds obtained as oils, greases, or plastics and used especially for water-resistant and heat-resistant lubricants, varnishes, binders, and electric insulators

Examples of silicone in a Sentence

a prosthesis made of silicone

Recent Examples on the Web

Simply place garlic cloves inside the silicone peeler, then mash and roll it with your hand until the skins come off. —Christina Shepherd McGuire, Better Homes & Gardens, 3 Feb. 2025

Instead, the non-profit research institution has come up with an advanced silicone polymer membrane that has high oxygen permeability, yet is hydrophobic to keep water from seeping through. —David Szondy, New Atlas, 1 Feb. 2025

Coming in at $5 a piece, this trio of thick silicone C-rings offers three different sizes to try. —Jake Henry Smith, Glamour, 24 Jan. 2025

Free of sulfates, silicones, and parabens, this seeks to repair signs of damage across all hair types and textures. —Kiana Murden, Vogue, 23 Jan. 2025

Word History

Etymology

silicon + -one

First Known Use

1943, in the meaning defined above

Phrases Containing silicone

• silicone rubber

Kids Definition

silicone

noun

sil·​i·​cone ˈsil-ə-ˌkōn 

: any of various silicon compounds that contain carbon and hydrogen, are obtained as oily or greasy substances or plastics, and are used especially for water-resistant and heat-resistant lubricants and varnishes

Medical Definition

silicone

noun

sil·​i·​cone ˈsil-ə-ˌkōn 

: any of various polymeric organic silicon compounds which are obtained as oils, greases, or plastics and some of which have been used as surgical implants