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.
Most of these toys are made of silicone, a plastic that should be unproblematic in the magnet, but to the surprise of those present, especially the woman being examined, this one did contain ferromagnetic material. Michaela Maya-Mrschtik, Scientific American, 6 Aug. 2025 Outfitted with steel cable loops, a waterproof PVC identification tag, and a bendable, flexible silicone body, these Ovener luggage tags were built for the long haul. Amelia McBride, Travel + Leisure, 24 July 2025 Authorities say Boelter was heavily armed and dressed in tactical armor with a silicone mask hiding his face and a police-style badge during the incidents – appearing as a police officer. Michelle Watson, CNN Money, 15 July 2025 The silicone earbud tips create a full seal in the ear, resulting in top-of-the-line noise cancellation, while the overall sound quality is exceptional with advanced listening modes (ANC, Transparency, and Adaptive). Cierra Cowan, PC Magazine, 14 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 19 Aug. 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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