Synopsis This terminology contains about 3000 terms. Some terms have more than one definition while some others differ depending upon the subdivisions science in which the terms has been used. It is hoped that the manner of presentation and conceptual path followed in the terminology will be useful for the readers in searching any terms. This terminology hopefully will prove an asset for the students, teachers, researchers, scientists and industrialists. Few terms in this terminology may be missing or may not be defined as peers thoughts. Suggestions received will certainly, encourage me help in improvement of future editions. We shall consider this effort successful and gratifying if the books serves the purpose for which it is intended.