This book is intended to provide basic understanding about the terminology used in agricultural meteorology for post graduate as well as undergraduate students and scientists carrying research in this field. The book has been explicitly designed to expose the students to all important concepts and definitions in Agrometeorology. In addition to terminology in Agricultural Meteorology, the book also includes some related/relevant terms in soils, agronomy, plant physiology and hydrology. This book would be immensely useful to students preparing for various competitive examinations conducted by ICAR. It would also be a useful handy source for teachers in the subject for imparting education in Agrometeorology to the students.