toxin

名词 toxin:

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

1. A toxin that damages or destroys nerve tissue.
   神经毒素损害或破坏神经组织的毒素
2. A protein substance produced in the blood or tissues in response to a specific antigen, such as a bacterium or a toxin. Antibodies destroy or weaken bacteria and neutralize organic poisons, thus forming the basis of immunity.
   抗体，免疫体血液或组织针对某种抗原如细菌或毒素而产生的蛋白质物质。抗体消灭细菌或削弱其作用，中和有机毒素，因而形成免疫力
3. A biotechnology company is developing a range of new pesticide based on naturally occur toxin.
   一家生物工艺开发公司正在根据自然滋生毒素的原理研制新型农药系列产品。
4. The cake on analysis was found to contain traces of toxin.
   经分析发现蛋糕里含有微量的毒素。