Formally, toxicology means the science of poisons. But, in an industrial agent, itsmeaning has acquired wider connotations and polluting agents like CO, CO2, heavymetals - which cause disease over a long period rather than quick death, havebeen included as its subject matter. The ecological concerns of mankind arereflected in it. The biological revolution has affected it profoundly andgenetic effects of various environmental factors now form a part of toxicology.With no great a variety, it is no wonder that the students is confused over newand unfamiliar words. This dictionary will go a long way towards solving theseproblems. In clear, concise manner, it gives the meaning of thousands oftechnical/jargon words used in genetics, cytology, pollution study andphysiology/medicine. It is hoped that students will benefit greatly from it andwill become a standard reference dictionary for them.