珪土

Japanese
Kanji in this term
珪 土
けい
Hyōgaiji
(ateji)		 ど
Grade: 1
kan’on kan’yōon

Etymology

Partial calque of Dutch keiaarde (literally “cobble, cobblestone + earth”) as a compound of 珪 (kei, “silicon”) +‎ 土 (do, “earth, soil”). Coined by Japanese scientist Udagawa Yōan in 1837 in his book 舎密開宗 (Seimi Kaisō, “Introduction to Chemistry”).

Pronunciation

Noun

珪(けい)土(ど) • (keido) 

  1. (obsolete) silica, silicon dioxide
    Synonym: シリカ (shirika)

References
  1. 2006, 大辞林 (Daijirin), Third Edition (in Japanese), Tōkyō: Sanseidō, →ISBN
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