L-tryptophan

noun
L-tryp·​to·​phan | \ ˈel-ˈtrip-tə-ˌfan How to pronounce L-tryptophan (audio) \

Definition of L-tryptophan

: the levorotatory form of tryptophan that is a precursor of serotonin and was used formerly as a dietary supplement especially to promote sleep and relieve depression

First Known Use of L-tryptophan

1949, in the meaning defined above

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The first known use of L-tryptophan was in 1949

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Dictionary Entries near L-tryptophan

ltng

LTP

ltr

L-tryptophan

LTS

Lu

luah

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Cite this Entry

“L-tryptophan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/L-tryptophan. Accessed 31 Oct. 2020.

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More Definitions for L-tryptophan

L-tryptophan

noun
L-tryp·​to·​phan | \ ˈel-ˈtrip-tə-ˌfan How to pronounce L-tryptophan (audio) \

Medical Definition of L-tryptophan

: the levorotatory form of tryptophan that is a precursor of serotonin and was formerly used in some health food preparations in the belief that it promoted sleep and relieved depression — see eosinophilia-myalgia syndrome

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