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

This compact skin-care device combines soft silicone and pulsations to break down oil, dirt, and sweat thoroughly. —Annie Blackman, Allure, 2 Dec. 2024

The brushroll and silicone PowerFins sweep up debris and pet hair without tangling. —Sarah Madaus, Architectural Digest, 2 Dec. 2024

After popping the platter on the spindle, the silicone belt is easily positioned on the pulley–an operation made even easier by the groove in the side of the platter that prevents the belt from slipping out of position. —Brad Moon, Forbes, 1 Dec. 2024

Divide dough in half; place each half on a silicone baking mat or large piece of parchment paper or plastic wrap. —Robin Miller, The Arizona Republic, 29 Nov. 2024

Word History

Etymology

silicon + -one

First Known Use

1943, in the meaning defined above

Phrases Containing silicone

• silicone rubber

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