胞嘧啶 bāo mì dìng

DEFINITIONS

  1. cytosine nucleotide (C, pairs with guanine G 鳥嘌呤|鸟嘌呤 in DNA and RNA)

CHARACTERS

胞 bāo
HSK 6
womb, placenta, fetal membrane
嘧 mì pyrimidine
啶 dìng phonetic used in pyridine and pyrimidine