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

Shop the best deals with up to 25 percent off, plus Lodge kitchen accessories like silicone hot handles for your skillet that start at just $10. —Caley Sturgill, Southern Living, 22 Jan. 2026

The bowl has four different kinds of silicone mat textures to clean different types and sizes of makeup brushes and sponges. —Taryn Brooke, Glamour, 22 Jan. 2026

That’s due to the toy’s silicone strings' ability to reach the back of the throat and become lodged. —Anna Halkidis, Parents, 22 Jan. 2026

ChatGPT-3 is rather like a silicone Sibyl, where even if the work produced is bad, or just not that good, it’s still somehow manufactured almost instantaneously, structure arising out of the void. —Literary Hub, 21 Jan. 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