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This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

硫

Reading

Kana: リュウ
Romaji: ryū
Kana
Romaji

Meaning

sulphur

Stroke Diagram

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Kanji Info

Stroke Count:  12
Radical Number:  112
Frequency:  1867
Grade:  8
Skip Pattern:  1-5-7
Korean Reading:  ryu
Chinese Reading:  liu2
Unicode:  786b
JIS:  4E32

Indexes

Halpern Index: 1184
Nelson Index: 3191
New Nelson Index: 4006
Spahn Hadamitzky Index: 5a7.3
Four Corner Index: 1061.3
Guide to Remembering Index: 1902
Gakken Index: 1500
Daikanwanjiten Index: 24229
Daikanwanjiten Index and Page: 8.0366
Remembering the kanji Index: 763
Kanji Flashcards Index: 1571
Kodansha Compact Index: 1405
Kanji in Context Index: 1551
1999 Kanji Learners Index: 803
2013 Kanji Learners Index: 1096
French Remembering the Kanji Index: 770
Remembering the Kanji 6th Index: 825
Essential Kanji Index: 1596
Kodansha Kanji Index: 1519
Roo 2001 Kanji Index: 3357
Tuttle Kanji Cards Index: 1573

Words

硫黄 (いおう、ゆおう)
sulfur (S); sulphur
硫化 (りゅうか)
sulfuration; sulphuration
硫安 (りゅうあん)
ammonium sulfate
二酸化硫黄 (にさんかいおう、にさんかイオウ)
sulfur dioxide; sulphur dioxide
濃硫酸 (のうりゅうさん)
concentrated sulfuric acid; concentrated sulphuric acid
硫酸 (りゅうさん)
sulfuric acid; sulphuric acid
亜硫酸 (ありゅうさん)
sulfurous acid; sulphurous acid
硫黄華 (いおうか)
flowers of sulfur; flowers of sulphur
二硫化炭素 (にりゅうかたんそ)
carbon disulfide
硫黄酸化物 (いおうさんかぶつ)
sulphur oxide; sulfur oxide
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