| 单词 | menadione |
| 释义 | menadione /men'euh duy"ohn/, n. Pharm. a synthetic yellow crystalline powder, C11H8O2, insoluble in water, used as a vitamin K supplement. Also called vitamin K3. [1940-45; ME(THYL) + NA(PHTHALENE) + DI-1 + -ONE] |
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