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

Elevate your at-home culinary experiences with avocado slicers and lemon squeezers to meat thermometers, silicone cooking utensils and all the fun in between. —Tory Johnson, ABC News, 21 Mar. 2026

Omnilux’s flexible silicone face mask uses two wavelengths of red and infrared light to target fine lines, wrinkles, and hyperpigmentation. —Conçetta Ciarlo, Vogue, 19 Mar. 2026

Beat in the vanilla and salt, then, using a silicone spatula, scrape down the sides of the bowl. —Olivia Wakim, AJC.com, 17 Mar. 2026

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