Noun
- plural form of melatonin
melatonins
English Wiktionary. Available under CC-BY-SA license.
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"melatonins." YourDictionary, n.d. Web. 05 December 2018. <https://www.yourdictionary.com/melatonins>.
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melatonins. (n.d.). Retrieved December 05th, 2018, from https://www.yourdictionary.com/melatonins
