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silicon.

A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855.

7 characters3 syllables approx.English language

Meaning & usage

noun/ˈsɪlɪkən/Australia, Canada, UK, US/ˈsɪləkɒn/Canada, Received-Pronunciation/ˈsɪləˌkɑn/General-American
  1. A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855.

    uncountable · usually
  2. A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855. A single atom of this element.

    countable · usually
Where this word comes from

Coined by Scottish chemist Thomas Thomson as a modification of the earlier name silicium, from the stem of Latin silex (“flint, silica”) + -on from carbon.

noun/ˈsɪlɪkən/Australia, Canada, UK, US/ˈsɪləkɒn/Canada, Received-Pronunciation/ˈsɪləˌkɑn/General-American
  1. Computing.

    slang · uncountable
  2. A computer processor.

    slang · uncountable
  3. Abbreviation of silicon chip.

    abbreviation · alt-of · uncountable
Where this word comes from

From the silicon chips used in computers.

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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.