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单词 guanine
释义

WordReference Random House Unabridged Dictionary of American English © 2024
gua•nine  (gwänēn),USA pronunciation n. [Biochem.]
  1. Biochemistrya purine base, C5H5N5O, that is a fundamental constituent of DNA and RNA, in which it forms base pairs with cytosine. Symbol: G  Cf. guanosine.
  • guan(o) + -ine2

Collins Concise English Dictionary © HarperCollins Publishers::
guanine /ˈɡwɑːniːn; ˈɡuːəˌniːn/ n
  1. a white almost insoluble compound: one of the purine bases in nucleic acids. Formula: C5H5N5O
Etymology: 19th Century: from guano + -ine²
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