| 单词 | spermidine |
| 释义 | spermidine /sperr"mi deen', -din/, n. Biochem. a biogenic polyamine, H2N(CH2)4NH(CH2)3NH2, formed from putrescine, occurring widely in nature and first identified in semen. [1925-30; SPERM- + -IDINE] |
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