King's Kung-Fu& Tai Chi

Chinese symbol for “melatonin”

褪黑素
tuì hēi sù
(biochemistry) melatonin

The closest CC-CEDICT match for melatonin is 褪黑素 (tuì hēi sù), defined as: (biochemistry) melatonin.

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Characters and stroke order

褪 tuì
to strip, to undress; to fade, to fall off
radical 145 ⾐ · 14 strokes
黑 hēi
black; dark; evil, sinister
radical 203 ⿊ · 12 strokes
素 sù
plain; white; vegetarian; formerly; normally
radical 120 ⽷ · 10 strokes

Other Chinese words for “melatonin”

WordPinyinMeaning
松果体素 (松果體素)sōng guǒ tǐ sù(biochemistry) melatonin
褪黑激素tuì hēi jī sù(biochemistry) melatonin

Related words

Other words that share a character with 褪黑素.

WordPinyinMeaning
褪色tuì sè(of colors) to fade; also pr. [tui4shai3]
褪去tuì qùto take off (one's clothes); (fig.) to shed (one's former image etc)
褪下tùn xiàto take off (trousers); to drop one's pants
褪光tuì guāngmatte (of a color etc)
褪套儿 (褪套兒)tùn tào r(coll.) to break loose; to shake off responsibility
黑人hēi rénblack person; an illegal
黑暗hēi àndark; darkly
黑色hēi sèblack
因素yīn sùelement; factor

See also: Japanese symbol for “melatonin”.

Data: CC-CEDICT (CC BY-SA 4.0); Unihan Database (Unicode License v3); Make Me a Hanzi (Arphic Public License (graphics.txt); LGPL-3.0-or-later (dictionary.txt)); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.