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单词	LD50
释义	LD50 noun ˌel-ˌdē-ˈfif-tē  : the amount of a toxic agent (such as a poison, virus, or radiation) that is sufficient to kill 50 percent of a population of animals usually within a certain time Word History Etymology lethal dose First Known Use 1942, in the meaning defined above Medical Definition LD50 noun variants or LD50 ˈel-ˈdē-ˈfif-tē  : the amount of a toxic agent (as a poison, virus, or radiation) that is sufficient to kill 50 percent of a population of animals usually within a certain time called also median lethal dose
随便看	allotriophagies allotriophagy allotrope allotropes allotropic allotropies allotropisms allotropize allotropy allots allottable allotted allottee allottees allotter allotters allotting allotype allotypes allotypic allotypically allotypies allotypy allover allovers

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