ケイ素

Japanese[edit]

Kanji in this term
素
そ Grade: 5
on’yomi

Alternative spellings
珪素硅素

Chemical element
Si
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ケイ素

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Etymology[edit]

Compound of 珪 (kei, “silicon”, from 珪土 (keido, “silica”)) +‎ 素 (so, “element”). Appears in the 1900 work 化学語彙 (Kagaku Goi, “Chemical Vocabulary”) by 櫻井錠二 (Sakurai Jōji).^[1]

The spelling shifted to using katakana for the kei portion as part of a general trend in Japanese natural sciences.^[2]

Pronunciation[edit]

(Tokyo) けーそ [kéꜜèsò] (Atamadaka – [1])^[2]
IPA^(key): [ke̞ːso̞]

Noun[edit]

ケイ素(そ) • (keiso)

silicon, Si

Synonyms[edit]

シリコン (shirikon)

Derived terms[edit]

ケイ素(そ)鋼(こう) (keisokō): silicon steel
ケイ素(そ)樹(じゅ)脂(し) (keiso jushi): silicone resin

References[edit]

^ 1988, 国語大辞典（新装版） (Kokugo Dai Jiten, Revised Edition) (in Japanese), Tōkyō: Shogakukan
↑ ^2.0 ^2.1 2006, 大辞林 (Daijirin), Third Edition (in Japanese), Tōkyō: Sanseidō, →ISBN

[KDJ-1] 1988, 国語大辞典（新装版） (Kokugo Dai Jiten, Revised Edition) (in Japanese), Tōkyō: Shogakukan

[DJR-2] 2.0 ^2.1 2006, 大辞林 (Daijirin), Third Edition (in Japanese), Tōkyō: Sanseidō, →ISBN

[1]

[2]

ケイ素

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