After the second edition in 2015, Arihant has now re-formulated its third edition of the ?Dictionary of Biology? which covers all branches of Biology in a clear, jargon-free, and concise manner. Being a useful tool, it makes science a bit simpler for Secondary & Senior Secondary Students and Candidates Appearing for various Competitive Examinations. The present edition incorporates: Authoritative guide to all aspects of Biology A-Z presentation of Terms, Definitions, Principles, Rules, etc. Covering more than 5000 entries useful at school and colleges level Cross-references network are given in some entries Illustrations, Diagrams, and Explanations enhance understanding of terms Appendices provide Human Diseases & Disorders, Branches of Biology, etc. All Terms of NCERT are also covered Cater needs of School & College Students, including the candidates for competitive exams.