toxin
/ˈtɒksɪn/
noun
-
a poisonous substance produced by living things, especially bacteria, plants, or animals
B2countable/uncountableformal
- "Some bacteria produce toxins that can make people very sick."B2
- "The doctor explained that the toxin had entered his bloodstream."C1
- "Certain frogs release toxins through their skin to protect themselves from predators."C2
- "The bacteria release a powerful toxin that can paralyze the nervous system."B2
- "Venom from a snake is a complex mixture of toxins."A2
Common mistakes
- The toxin from the spider bit him.→The toxin from the spider's bite affected him.
Use "toxin" not "venom" for non-injected poisons, but spiders inject venom.