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ENGLISH · A WORD WITH POSSIBILITIES

silicone.

Any of a class of inert, semi-inorganic polymeric compounds (polysiloxanes), that have a wide range of thermal stability and extreme water repellence, used in a very wide range of industrial applications, and in prosthetic replacements for body parts.

8 characters3 syllables approx.English language

Meaning & usage

noun/ˈsɪlɪkəʊn/
  1. Any of a class of inert, semi-inorganic polymeric compounds (polysiloxanes), that have a wide range of thermal stability and extreme water repellence, used in a very wide range of industrial applications, and in prosthetic replacements for body parts.

    countable · uncountable
Where this word comes from

From silicon + -one. Originally obtained by the attempted synthesis of the silicon equivalent of a ketone.

verb/ˈsɪlɪkəʊn/
  1. To join or treat (something) with a silicone-based product.

    transitive
    silicone the bathtub to the tile
  2. To enhance or reconstruct (a body part) with a prosthesis containing silicone.

    informal · transitive
Where this word comes from

From silicon + -one. Originally obtained by the attempted synthesis of the silicon equivalent of a ketone.

adj/ˈsɪlɪkəʊn/
  1. Having had cosmetic surgery, especially breast enlargement.

    not-comparable · slang
Where this word comes from

From silicon + -one. Originally obtained by the attempted synthesis of the silicon equivalent of a ketone.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.