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单词 tryptophan
释义

tryptophan

noun

tryp·​to·​phan ˈtrip-tə-ˌfan How to pronounce tryptophan (audio)
variants or less commonly tryptophane
ˈtrip-tə-ˌfān How to pronounce tryptophan (audio)
: a crystalline essential amino acid C11H12N2O2 that is widely distributed in proteins

Example Sentences

Recent Examples on the Web Since it's not promoted, there's more tryptophan available to influence someone's tiredness. Jordan Mendoza, USA TODAY, 26 Nov. 2021 The 152 tryptophan is substituted for leucine in the California variants. William A. Haseltine, Forbes, 20 Sep. 2021 Without the ability to measure fecal coliform in real time, the Chicago River probes measure tryptophan-like fluorescence; researchers say readings spike after rain events or sewage dumps, similarly to fecal coliform levels. Morgan Greene, chicagotribune.com, 2 Sep. 2021 Carbohydrates in berries can help to amplify serotonin production in the brain, while yogurt is a source of sleep-promoting tryptophan. Lisa Drayer, CNN, 20 Apr. 2021 Carbohydrates in berries can help to amplify serotonin production in the brain, while yogurt is a source of sleep-promoting tryptophan. Lisa Drayer, CNN, 20 Apr. 2021 Carbohydrates in berries can help to amplify serotonin production in the brain, while yogurt is a source of sleep-promoting tryptophan. Lisa Drayer, CNN, 20 Apr. 2021 Carbohydrates in berries can help to amplify serotonin production in the brain, while yogurt is a source of sleep-promoting tryptophan. Lisa Drayer, CNN, 20 Apr. 2021 Carbohydrates in berries can help to amplify serotonin production in the brain, while yogurt is a source of sleep-promoting tryptophan. Lisa Drayer, CNN, 20 Apr. 2021 See More

Word History

Etymology

borrowed from German Tryptophan, from tryptisch tryptic + -o- -o- + -phan -phane

First Known Use

1890, in the meaning defined above

Medical Definition

tryptophan

noun

tryp·​to·​phan ˈtrip-tə-ˌfan How to pronounce tryptophan (audio)
variants also tryptophane
-ˌfān How to pronounce tryptophan (audio)
: a crystalline essential amino acid C11H12N2O2 that is widely distributed in proteins
abbreviation Trp
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更新时间:2024/12/23 16:27:47