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

Some even have foam padding for cushioning and silicone dots on fingertips to help with grip. —Libby Monteith Minor, Southern Living, 14 Mar. 2026

The lid includes an integrated strainer, silicone thumb rests for safe, secure handling, and a center pull handle. —New Atlas, 12 Mar. 2026

Having a couple of spatulas on hand — one silicone, one metal — covers the full range of cooking tasks, from delicate eggs in a nonstick pan to searing burgers on cast iron. —Kansas City Star, 11 Mar. 2026

Avoid lining your pan with parchment or silicone when roasting. —Maria Helm Sinskey, Bon Appetit Magazine, 10 Mar. 2026

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