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

Washable rugs, certain yoga mats, and even some silicone kitchen tools can also all make their way into the wash, shares Petrino. —Stacey Lastoe, Southern Living, 6 Dec. 2025

A number of bizarre robotic dogs fitted with hyper-realistic silicone faces of renowned public figures such as Elon Musk, Jeff Bezos, and Mark Zuckerberg have been demonstrated at the Art Basel Miami Beach. —Prabhat Ranjan Mishra, Interesting Engineering, 5 Dec. 2025

Add the wet ingredients to the dry ingredients and mix with a silicone spatula until a dough forms. —Anna Cafolla, Vogue, 4 Dec. 2025

Tests in pigs and silicone blood vessel models show encouraging results. —Kurt Knutsson, FOXNews.com, 4 Dec. 2025

Word History

Etymology

silicon + -one

First Known Use

1943, in the meaning defined above

Phrases Containing silicone

• silicone rubber

Rhymes for silicone

• acetone
• anglophone
• baritone
• bourguignon
• buspirone
• chaperon
• chaperone
• cobblestone
• collarbone
• cornerstone
• cortisone
• dictaphone

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