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单词 tryptophan
释义

WordReference Random House Unabridged Dictionary of American English © 2024
tryp•to•phan  (triptə fan′),USA pronunciation n. [Biochem.]
  1. Biochemistryan essential amino acid, (C8H6N)CH2CH(NH2)COOH, colorless, crystalline, and aromatic, released from proteins by tryptic digestion and a precursor of serotonin. Abbr: Trp; Symbol: W 
Also, tryp•to•phane (triptə fān′).USA pronunciation 
  • trypto- (irregularly combining form representing Greek trīptós rubbed) + -phan(e) 1900–05

Collins Concise English Dictionary © HarperCollins Publishers::
tryptophan /ˈtrɪptəˌfæn/ n
  1. an essential amino acid; a component of proteins necessary for growth
Etymology: 20th Century: from trypt( ic) + -o + -phan variant of -phane
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更新时间:2024/9/21 15:53:27