sil·​i·​cone | \ ˈsi-lə-ˌkōn How to pronounce silicone (audio) \

Definition of silicone

: 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 vessel is placed inside a larger, more rigid outer shell made of medical grade polystyrene and a large silicone o-ring. Carolyn L. Todd, SELF, "These Two Women Both ‘Carried’ Their Baby Using Reciprocal Effortless IVF," 16 Nov. 2018 Cells placed on a mushroom cap lasted several days longer those left on a piece of silicone. David Grossman, Popular Mechanics, "Your Next Electrical Source: Bionic Mushrooms," 9 Nov. 2018 Softening primers already exist, but most deliver that baby-smooth effect with a hearty dose of silicones. Rachel Nussbaum, Glamour, "This Black Primer Works Like Magic on Your Skin," 24 Sep. 2018 Scrape down the sides with a silicone spatula and mix in the eggs, vanilla, baking powder and salt. Alison Roman, The Seattle Times, "‘We are all connected by cookies’: A tribe with a bond stronger than royal icing," 12 Dec. 2018 Please, please, please, just let the commercial version not look like the giant silicone LICKI tongue some excessively devoted cat owners use to groom their cats for them. Jennifer Ouellette, Ars Technica, "Science says your cat’s tongue is ideally suited for grooming fur," 28 Dec. 2018 This kit utilizes flexible silicone walls that collapse and allow the bowls and cups to sit inside the pot when stored. Emily Reed, Outside Online, "Why I Love Collapsible Camping Gear," 18 June 2018 Heat oven to 375 degrees and line baking sheets with silicone baking sheets or parchment paper. 2. Alison Roman, The Seattle Times, "‘We are all connected by cookies’: A tribe with a bond stronger than royal icing," 12 Dec. 2018 Much as with traditional skin care, a proper scalp regimen requires avoiding products with parabens, sodium lauryl sulfate, silicones, fragrances, alcohol and synthetic colors, says Stephen de Heinrich, founder of skin care company Omorovicza. Fiorella Valdesolo, WSJ, "These 3 Scalp Care Products Are the Next Big Thing in Beauty," 31 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'silicone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of silicone

1943, in the meaning defined above

History and Etymology for silicone

silicon + -one

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Statistics for silicone

Last Updated

12 Feb 2019

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Time Traveler for silicone

The first known use of silicone was in 1943

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More Definitions for silicone


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

Medical Definition of silicone

: 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

Rhyming Dictionary: Words that rhyme with silicone Encyclopedia article about silicone

Comments on silicone

What made you want to look up silicone? Please tell us where you read or heard it (including the quote, if possible).


of or relating to a parable or parabola

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