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

• (Tokyo) け​ーど [kéꜜèdò] (Atamadaka – [1])
• IPA^(key): [ke̞ːdo̞]

Noun

珪(けい)土(ど) • (keido) 

1. (obsolete) silica, silicon dioxide

   Synonym: シリカ (shirika)