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.
On the table in the middle of the room were silicone peels reminiscent of cast-off snakeskin. Literary Hub, 14 July 2025 To aid in future operation and prevent your window from getting stuck again, apply a spray lubricant, such as silicone spray, to the tracks. Kamron Sanders, Better Homes & Gardens, 12 July 2025 That’s not the case with silicone injections, which are permanent. Carlos Wolf, Miami Herald, 11 July 2025 Amazon $79 Nothing Nothing's Ear (a) (8/10, WIRED Recommends) deliver AirPods Pro-like sound in fun Pikachu-yellow with comfy silicone tips, plus a sleek charging case rarely seen at this price. Parker Hall, Wired News, 11 July 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 21 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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