toxin

详细解释:n. 毒素
【化】 毒素
【医】 毒素

英语解释：

名词 toxin:

a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species

例句：

A toxin that damages or destroys nerve tissue.神经毒素损害或破坏神经组织的毒素