silicone

noun

sil·​i·​cone ˈsi-lə-ˌkōn How to pronounce silicone (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Key to advancing this intelligence is the field of soft robotics, which uses materials like silicone or special fabrics to enable more flexible robot bodies. New Atlas, 29 June 2025 The company’s proprietary filter, paired with a brushless drain motor and silicone brush, allows the Scuba S1 to meticulously maintain up to 1,600 square feet. Mariana Best, Better Homes & Gardens, 27 June 2025 Before the attacks, Boelter compiled a list of mostly Democratic state lawmakers and their addresses, disguised his SUV to look like a police squad car, and purchased a silicone mask and a cache of weapons, according to the affidavit. N'dea Yancey-Bragg, USA Today, 27 June 2025 Officers also found notebooks that contained research on websites for purchasing silicone masks, similar to the one Boelter can reportedly be seen wearing on camera footage recorded at Sen. John Hoffman’s residence in Champlin on June 14. Mary Murphy, Twin Cities, 27 June 2025 See All Example Sentences for silicone

Word History

Etymology

silicon + -one

First Known Use

1943, in the meaning defined above

Time Traveler
The first known use of silicone was in 1943

Cite this Entry

“Silicone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/silicone. Accessed 9 Jul. 2025.

Kids Definition

silicone

noun
sil·​i·​cone ˈsil-ə-ˌkōn How to pronounce silicone (audio)
: 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 How to pronounce silicone (audio)
: 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

More from Merriam-Webster on silicone

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