Synopsis The book "Dictionary of Soil Science" aims to create a terms and terminology of soil science in a very lucid way, so that students and researchers may understand the soil science related term easily. The present dictionary consists about 750 words involving nearly all sphere of soil science subjects. It includes recently introduce words like Integrated Plant Nutrient System (IPNS), organic farming, precision agriculture, sustainable agriculture and Geographical Information System (GIS) for better understanding of students. This dictionary will fulfilled the needs of student who are interested in usually agriculture and particularly in soil science. Reader will find a short but clear meaning of a particular word. For enhancing knowledge of reader about soil science related words appendix I to XI fulfilled the need on one hand and helpful for agriculture related competitive examination other hand.