Toxicology (noun)

The branch of science concerned with the nature, effects, and detection of poisons and the treatment of poisoning.

Origin:

Early 19th century: from french toxicologie, from toxic- "poisonous" + -logie -logy.

Examples:

1. He is a toxicologist who specializes in the effects of environmental toxins.
2. She is an expert in toxicology and has published several papers on the subject.
3. The toxicology report revealed that the patient had been poisoned.
4. The toxicology lab is responsible for analyzing samples for the presence of toxins.
5. His research in toxicology has led to new treatments for poisonings.