noun · 6 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
sĭl'ĭkən
Australian, Canada, UK, US:/ˈsɪlɪkən/
General-American:Recorded audio is listed in the source snapshot.
New-Jersey:Recorded audio is listed in the source snapshot.
sĭl'ĭkŏn′
Canada, Received-Pronunciation:/ˈsɪləkɒn/
General-American:/ˈsɪləˌkɑn/
General-American:Recorded audio is listed in the source snapshot.
CMU ARPABET:S IH1 L AH0 K AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
Computing.
Definition source: English Wiktionary via Wiktextract
Usage: slang, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
A computer processor.
Definition source: English Wiktionary via Wiktextract
Usage: slang, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
Abbreviation of silicon chip.
Definition source: English Wiktionary via Wiktextract
Usage: abbreviation, alt-of, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
noun
Meaning 6
a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: Si, atomic number 14
Antonyms: none provided
Broader terms: chemical element, element, semiconductor, semiconducting material
History
Etymology
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.
From the silicon chips used in computers.
Across languages
Translations
112 source translations are retained for this English entry.
Afrikaans:
silikon
— non-metallic element
Albanian:
silicium
— non-metallic element
Arabic:
سِيلِيكُون m or سِلِكُون
(sīlīkūn)
— non-metallic element
Armenian:
սիլիցիում
(silicʻium)
— non-metallic element
Asturian:
siliciu
— non-metallic element
Basque:
silizioa
— non-metallic element
Belarusian:
крэ́мній
(krémnij)
— non-metallic element
Belarusian:
крэмень
(kremien)
— non-metallic element
Breton:
silisiom
— non-metallic element
Breton:
silikiom
— non-metallic element
Bulgarian:
сили́ций
(silícij)
— non-metallic element
Catalan:
silici
— non-metallic element
Chinese Mandarin:
硅
(guī)
— non-metallic element
Chinese Mandarin:
矽
(xī)
— non-metallic element
Cornish:
silikon
— non-metallic element
Corsican:
siliciu
— non-metallic element
Czech:
křemík
— non-metallic element
Danish:
silicium
— non-metallic element
Dutch:
silicium
— non-metallic element
Esperanto:
silicio
— non-metallic element
Estonian:
räni
— non-metallic element
Faroese:
silisium
— non-metallic element
Finnish:
pii
— non-metallic element
French:
silicium
— non-metallic element
West-Frisian:
silisium
— non-metallic element
Friulian:
silici
— non-metallic element
Galician:
silicio
— non-metallic element
Georgian:
სილიციუმი
(siliciumi)
— non-metallic element
German:
Silizium
— non-metallic element
German:
Silicium
— non-metallic element
Central Franconian:
Silizium
— non-metallic element
Greek:
πυρίτιο
(pyrítio)
— non-metallic element
Gujarati:
સિલિકોન
(silikon)
— non-metallic element
Gujarati:
સૈકતા
(saiktā)
— non-metallic element
Haitian Creole:
silisyòm
— non-metallic element
Hawaiian:
silikone
— non-metallic element
Hebrew:
צורן
(tsoran)
— non-metallic element
Hindi:
सैकता
(saiktā)
— non-metallic element
Hungarian:
szilícium
— non-metallic element
Icelandic:
kísill
— non-metallic element
Ido:
siliko
— non-metallic element
Indonesian:
silikon
— non-metallic element
Indonesian:
zat pasir
— non-metallic element
Interlingua:
silicium
— non-metallic element
Irish:
sileacan
— non-metallic element
Italian:
silicio
— non-metallic element
Japanese:
ケイ素
(keiso)
— non-metallic element
Japanese:
珪素
(keiso)
— non-metallic element
Japanese:
シリコン
(shirikon)
— non-metallic element
Kannada:
ಸಿಲಿಕಾನ್
(silikān)
— non-metallic element
Kashubian:
krzém
— non-metallic element
Kazakh:
кремний
(kremnii)
— non-metallic element
Khmer:
ស៊ីលីស្យូម
(siiliisyoum)
— non-metallic element
Korean:
규소
(gyuso)
— non-metallic element
Korean:
실리콘
(sillikon)
— non-metallic element
Northern Kurdish:
sîlîsyûm
— non-metallic element
Kyrgyz:
кремний
(kremniy)
— non-metallic element
Lao:
ຊິລິຄອນ
(si li khǭn)
— non-metallic element
Latin:
silicium
— non-metallic element
Latvian:
silīcijs
— non-metallic element
Lingala:
siliki class 9a/10a
— non-metallic element
Lithuanian:
silicis
— non-metallic element
Low German:
silizium
— non-metallic element
Luxembourgish:
Silizium
— non-metallic element
Macedonian:
силициум
(silicium)
— non-metallic element
Malay:
silikon
— non-metallic element
Malayalam:
സിലിക്കണ്
(silikkaṇ)
— non-metallic element
Maltese:
silikon
— non-metallic element
Manx:
silicoin
— non-metallic element
Māori:
takawai
— non-metallic element
Marathi:
सिलिकॉन
(silikŏn)
— non-metallic element
Mongolian:
цахиур
(caxiur)
— non-metallic element
Nahuatl:
tecpatli
— non-metallic element
Norwegian Bokmål:
silisium
— non-metallic element
Norwegian Nynorsk:
silisium
— non-metallic element
Occitan:
silici
— non-metallic element
Persian:
سیلیسیم
(silisyom)
— non-metallic element
Polish:
krzem
— non-metallic element
Portuguese:
silício
— non-metallic element
Punjabi:
ਸਿਲੀਕੋਨ
(silīkon)
— non-metallic element
Quechua:
ullayayaq
— non-metallic element
Romanian:
siliciu
— non-metallic element
Russian:
кре́мний
(krémnij)
— non-metallic element
Russian:
сили́ций
(silícij)
— non-metallic element
Sanskrit:
सैकतीय
(saikatīya)
— non-metallic element
Santali:
ᱥᱤᱞᱤᱠᱟᱱ
(silikan)
— non-metallic element
Scottish Gaelic:
sileacon
— non-metallic element
Serbo-Croatian:
силицијум
— non-metallic element
Serbo-Croatian:
сѝлӣцӣј
— non-metallic element
Serbo-Croatian:
silicijum
— non-metallic element
Serbo-Croatian:
sìlīcīj
— non-metallic element
Sicilian:
siliciu
— non-metallic element
Slovak:
kremík
— non-metallic element
Slovene:
silicij
— non-metallic element
Spanish:
silicio
— non-metallic element
Swahili:
silikoni
— non-metallic element
Swedish:
kisel
— non-metallic element
Tagalog:
silisyo
— non-metallic element
Tajik:
силитсий
(silitsiy)
— non-metallic element
Tamil:
சிலிக்கான்
(cilikkāṉ)
— non-metallic element
Telugu:
సిలికాన్
(silikān)
— non-metallic element
Thai:
ซิลิคอน
(sí-lí-kɔ̂n)
— non-metallic element
Turkish:
silisyum
— non-metallic element
Ukrainian:
кре́мній
(krémnij)
— non-metallic element
Uyghur:
كرىمنىي
(krimniy)
— non-metallic element
Uyghur:
سىلىتسىي
(silitsiy)
— non-metallic element
Uzbek:
kremniy
— non-metallic element
Vietnamese:
silic
— non-metallic element
Welsh:
silicon
— non-metallic element
Welsh:
callestrai
— non-metallic element
Yiddish:
סיליציום
(silitsyum)
— non-metallic element
Yiddish:
סיליקאָן
(silikon)
— non-metallic element