ABSTRACT
Toxicology (toxicos; poisonous + logy; science) also called toxicological science is the fusion of sciences based on biology, chemistry, physics, anatomy, physiology, pathology, psychology, zoology, pharmacology, genetics, biochemistry, statistics, and mathematics. Toxicology is traditionally defined as the science of poisons which are also termed as toxicants, toxic substances, toxins, xenobiotics, or stressors. A more descriptive definition of toxicology is the study of the nature and mechanisms underlying toxic effects exerted directly or indirectly by substances such as biological, chemical, physical, genetic, or psychological agents on living organisms and other biological systems. Toxicology also deals with quantitative or qualitative assessment of the adverse effects in relation to the concentration or dosage, duration, and frequency of exposure of the organisms.
