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

To keep it in pristine condition, use a tissue or dry cloth to wipe the curler and silicone pads clean after each use, and replace the pad every few months or so to maintain peak performance. —Kiana Murden, Vogue, 18 Oct. 2025

Elordi wore 42 individual silicone pieces — 12 on the head, 30 on the body — which were applied over ten hours. —Leah Dolan, CNN Money, 17 Oct. 2025

Along with the Ripple Case, the Essentials by Casetify winter 2025 collection includes the Ripple Grip Stand, a Snap and Stick Grip Stand, a silicone Ripple Earbuds Case, Rope Wrist Strap and more. —Julia Teti, Footwear News, 15 Oct. 2025

The 28-year-old model was photographed in New York City wearing a sheer black turtleneck top, tucked into a black mini skirt and worn with a black blazer over it, barely covering the adhesive silicone covers on her chest. —Lori A Bashian, FOXNews.com, 15 Oct. 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