We found 31 dictionaries with English definitions that include the word melatonin:
Click on the first link on a line below to go directly to a page where "melatonin" is defined.
 General (17 matching dictionaries)
- melatonin: American Heritage Dictionary of the English Language [home, info]
- melatonin: Merriam-Webster's Online Dictionary, 11th Edition [home, info]
- melatonin: Wiktionary [home, info]
- melatonin: Webster's New World College Dictionary, 4th Ed. [home, info]
- melatonin: The Wordsmyth English Dictionary-Thesaurus [home, info]
- melatonin: Infoplease Dictionary [home, info]
- melatonin: Dictionary.com [home, info]
- melatonin: Online Etymology Dictionary [home, info]
- melatonin: UltraLingua English Dictionary [home, info]
- Melatonin (album), Melatonin: Wikipedia, the Free Encyclopedia [home, info]
- melatonin: Rhymezone [home, info]
- melatonin: Columbia Encyclopedia, Sixth Edition [home, info]
- melatonin: Free Dictionary [home, info]
- melatonin: Mnemonic Dictionary [home, info]
- melatonin: WordNet 1.7 Vocabulary Helper [home, info]
- melatonin: LookWAYup Translating Dictionary/Thesaurus [home, info]
- melatonin: Dictionary/thesaurus [home, info]
Computing (1 matching dictionary)
- melatonin: Encyclopedia [home, info]
Medicine (11 matching dictionaries)
- melatonin: Dorland's Illustrated Medical Dictionary [home, info]
- Melatonin: MedTerms.com Medical Dictionary [home, info]
- Melatonin: Medical Dictionary [home, info]
- Melatonin: Merck Manuals [home, info]
- melatonin: online medical dictionary [home, info]
- Melatonin: Hepatitis C Information Central [home, info]
- Melatonin: Glossary of Herbs, Botanicals and Other Products [home, info]
- melatonin: Dictionary of Cancer Terms [home, info]
- Melatonin: Sleep Terms [home, info]
- melatonin: Medical dictionary [home, info]
- Melatonin: Drug Medical Dictionary [home, info]
Science (1 matching dictionary)
- Melatonin: Biological Sciences Dictionary [home, info]
Sports (1 matching dictionary)
- Melatonin: Body Building [home, info]
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Quick definitions (melatonin)
▸ noun: hormone secreted by the pineal gland
▸ Word origin
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