ヨウ素

Japanese

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

Alternative spelling
沃素

Chemical element
I
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ヨウ素

Wikipedia ^ja

Etymology

Compound of 沃 (yō, used phonetically) +‎ 素 (so, “chemical element”). First used by Morisaburō Ichikawa in Rika Nikki (1872).^[1] 沃 was used by Shiba Ryōkai in Shichiyaku Shinsetsu (1860) as 沃顛^[2] and by Heijirō Takehara in Kagaku Nyūmon (1867–1870) as 沃陳(ヨヂウム) from Dutch jodium.

Pronunciation

(Tokyo) ヨーそ [yóꜜòsò] (Atamadaka – [1])
IPA^(key): [jo̞ːso̞]

Noun

ヨウ素(そ) • (yōso)

iodine, I
放(ほう)射(しゃ)性(せい)のヨウ素(そ)131(ひゃくさんじゅういち)
hōshasei no yōso-hyakusanjūichi
radioactive iodine-131

References

^ Fumiko Kōji, Shōzō Kobayashi, Hiroyuki Hirata, 日本各地の明治中期の理科授業筆記の発見と当時の元素教育
^ 潘吉星, 中外科學之交流, 1993, →ISBN, page 316

[1] Fumiko Kōji, Shōzō Kobayashi, Hiroyuki Hirata, 日本各地の明治中期の理科授業筆記の発見と当時の元素教育

[2] 潘吉星, 中外科學之交流, 1993, →ISBN, page 316

[1]

[2]