melatonin

Etymology
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Noun

 * 1) A hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals.
 * 2) Any material similar in its chemistry and effect to the natural hormone.
 * 1) Any material similar in its chemistry and effect to the natural hormone.

Translations

 * Armenian:
 * Azerbaijani: melatonin
 * Belarusian: мелатані́н
 * Catalan: melatonina
 * Chinese:
 * Mandarin: 褪黑素
 * Danish: melatonin
 * Dutch:
 * Finnish:
 * French:
 * Georgian: მელატონინი
 * German:
 * Greek:
 * Hungarian:
 * Irish: meileatoinin
 * Italian:
 * Japanese: メラトニン
 * Korean: 멜라토닌
 * Latvian: melatonīns
 * Odia: ମେଲାଟୋନିନ
 * Persian: ملاتونین
 * Polish:
 * Russian:
 * Spanish: melatonina
 * Swedish:
 * Tamil: மெலட்டோனின்
 * Thai: เมลาโทนิน
 * Turkish: melatonin
 * Ukrainian: мелатоні́н
 * Welsh: melatonin

Etymology
.