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

Another tester was impressed by the soft fabric and silicone grippers, which helped prevent rolling under form-fitting dresses. —Malia Griggs, Glamour, 4 June 2026

For special occasions or open-neckline clothing, strapless bras stay in place with silicone grippers and wide back bands. —Fort Worth Star-Telegram, 4 June 2026

To protect the coating, use wooden, plastic or silicone utensils instead of metal. —Ryan Brennan june 2, Sacbee.com, 3 June 2026

Her household has gone almost entirely glass for food storage, opting for plastic or silicone lids that don’t touch the food. —Angela Haupt, Time, 3 June 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