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

On the table in the middle of the room were silicone peels reminiscent of cast-off snakeskin. —Literary Hub, 14 July 2025

To aid in future operation and prevent your window from getting stuck again, apply a spray lubricant, such as silicone spray, to the tracks. —Kamron Sanders, Better Homes & Gardens, 12 July 2025

That’s not the case with silicone injections, which are permanent. —Carlos Wolf, Miami Herald, 11 July 2025

Amazon $79 Nothing Nothing's Ear (a) (8/10, WIRED Recommends) deliver AirPods Pro-like sound in fun Pikachu-yellow with comfy silicone tips, plus a sleek charging case rarely seen at this price. —Parker Hall, Wired News, 11 July 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