This dictionary has been compiled and edited to bring together the various concepts of Physics. The terms included in this dictionary have been presented in brief analytical phrases thereby avoiding the more comprehensive type of treatment appropriate to larger reference book. The extent of each entry has been ascertained by the need for definition of meaning function and physics relevance. A very systematic/scientific analysis of each entry is given. The dictionary will be useful for students, scholars and professionals from different disciplines such as physics science, engineering, science, biophysics and environmental science.