This dictionary is intended for school, college and university students who are talking Physics as one of their courses. It is a scholarly and trustworthy guide to the concepts and terminology of all the topics that feature in Physics at this level today. The exceptionally reliable definitions and clear explanations provided will make this an invaluable reference book. At the same time, it will lead readers to make new discoveries by following up cross-references and by browsing. It also includes entries concerned with important Physics of more general interest. At certain places, the diagrams have been included whenever the meaning of a term can be understood by means of a line diagram.

Originality cannot be claimed and at best it is compiled work with novel representation. During the compilation of this dictionary, a number of books written by foreign and Indian authors have been consulted. The editor is deeply indebted to all of them. However, their number being too large that it is not possible to acknowledge gratitude to all of them individually.

This dictionary will be of immense value to the students of Physics, Science and engineering students at various levels.