melatonin
n.
1958, from Greek melas "black, dark" (see melanin) + ending from serotonin. So called because its secretion is inhibited by sunlight.
| 词汇 | melatonin |
| 词根词缀 | Online Etymology Dictionary melatonin n. 1958, from Greek melas "black, dark" (see melanin) + ending from serotonin. So called because its secretion is inhibited by sunlight. |
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