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单词 melatonin
释义
mel·a·to·nin (mĕlə-tōnĭn)
n.
An animal hormone, C13H16N2O2, derived from serotonin and produced by the pineal gland. It stimulates color change in the skin of amphibians and reptiles and plays a role in regulating circadian rhythms and reproductive cycles in mammals. It is also found in plants and fungi.

[Greek melās, black + TON(E) + -IN.]
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更新时间:2024/9/21 15:50:03