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

There are also some rubber and silicone bath spouts that can be washed in the dishwasher. —Bestreviews, Mercury News, 26 Sep. 2025

Also known as a laparoscopic adjustable gastric band, the weight loss surgery is designed to help patients by restricting food intake when a silicone device is surgically placed around a portion of the stomach. —Tracy Wright, FOXNews.com, 26 Sep. 2025

Mini muffins and cupcakes are a classic, and this flexible silicone pan makes a convenient option for batch baking. —Francesca Krempa, Bon Appetit Magazine, 25 Sep. 2025

The silicone softener is Archroma’s solution for brand partners who are increasingly design for longevity and comfort, according to Dhirendra Gautam, Archroma’s VP global marketing and strategy. —Angela Velasquez, Sourcing Journal, 25 Sep. 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