What does toxicology mean?
Toxicology is the scientific study of poisons and other toxic substances. It examines how such substances affect humans, animals, and other organisms, including the mechanisms by which they cause harm. Specialists in clinical toxicology help diagnose and treat poisoning; forensic toxicologists analyze substances in biological samples during criminal investigations; and environmental toxicologists study the effects of pollutants on ecosystems and wildlife. The discipline also develops methods for detecting toxins and evaluating the safety of chemicals, medicines, and consumer products. Toxicity is closely related to toxicology but names the harmful quality or degree of a substance rather than the field that investigates it. Because toxicology draws on chemistry, medicine, pharmacology, biology, and environmental science, it has broad practical importance in public health, medicine, industry, and environmental protection. The word is primarily used in academic, medical, legal, and regulatory contexts rather than in everyday conversation.
nounThe branch of science concerned with poisonous and toxic substances, including their effects on organisms, detection, diagnosis, and treatment.
- The branch of science that studies poisonous and toxic substances and their effects on living organisms.
"Forensic toxicology helped investigators determine how the poison had entered the victim's body."
"Clinical toxicology provides advice on the diagnosis and management of poisoning."
"The conference brought together researchers in environmental toxicology to discuss emerging contaminants."
The plural is uncommon and usually distinguishes separate toxicological disciplines, fields of study, or regional approaches.
"Regional toxicologies differ in the environmental hazards they prioritize."
Toxicology combines the Greek words for “poison” and “study,” turning an ancient hazard into a modern science that can identify, explain, and sometimes counter it.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does toxicology come from?
Toxicology combines the Greek toxikon, meaning “poison,” with -logia, meaning “the study of.” Its cognates include toxic, toxin, and toxicity, all of which ultimately relate to the notion of poisonous substances. The scientific discipline developed as the understanding of poisons became increasingly systematic.
Related word forms
How toxicology is actually used
This is a formal scientific and professional term. The field itself is normally treated as uncountable; the plural is uncommon and usually refers to distinct toxicological disciplines or approaches.
Easily confused with toxicology
Toxicology is the scientific study of poisonous substances and their effects, whereas toxicity refers to the degree to which a substance is harmful.