フッ素

Japanese

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

Alternative spelling
弗素 (dated)

Chemical element
F
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Etymology

Compound of 弗 (futsu, used phonetically) +‎ 素 (so, “chemical element”). First used by Morisaburō Ichikawa in Rika Nikki (1872).[1] 弗 (futsu) was chosen for the initial fu, used by Udagawa Yōan in Seimi Kaisō (1837-1847) as 弗律阿里涅(フリュオリネ)[2] from New Latin fluorine (not used today), and by Heijirō Takehara in Kagaku Nyūmon (1867-1870) as 弗律阿𠌃母(フリュオリウム) from New Latin fluorium. Other sources say it is from English fluorine[3][4] but the Dutch translations predate English ones.

Pronunciation

On’yomi: Kan’on

(Tokyo) フッそ [fúꜜssò] (Atamadaka – [1])[3]
IPA^(key): [ɸɯ̟ᵝsːo̞]

Noun

フッ素(そ) • (fusso)

fluorine, F
fluorine gas
(dentistry, ellipsis) fluoride to prevent cavities such as sodium fluoride.

Usage notes

Commonly written with katakana instead of kanji for the 弗 portion, due to the rarity of the 弗 character.

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
Shizuo Fujiwara, Yūko Okamoto, 舎密開宗における現代化学用語
2006, 大辞林 (Daijirin), Third Edition (in Japanese), Tōkyō: Sanseidō, →ISBN
1995, 大辞泉 (Daijisen) (in Japanese), Tōkyō: Shogakukan, →ISBN

[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] Shizuo Fujiwara, Yūko Okamoto, 舎密開宗における現代化学用語

[DJR-3] 2006, 大辞林 (Daijirin), Third Edition (in Japanese), Tōkyō: Sanseidō, →ISBN

[DJS-4] 1995, 大辞泉 (Daijisen) (in Japanese), Tōkyō: Shogakukan, →ISBN