Remarkable progress continues to be made in mathematical sciences. This advancement has made inter-relationships amongst various branches within mathematics and with other branches of science highly evolving, leading to newer 'terms' being invented and getting added. These additions make mathematics a little more complex. Emerging complexity translates into more difficulties for students in grasping the problem. And what makes the comprehension problematic? It is the introduction of 'terms', their definition and how to apply them in physical, chemical, biological, biotechnology, and social sciences works. And if these terms are not adequately explained, students and other interested readers face a herculean task in understanding what the question is all about, and unless readers clearly understand the terminology, finding a solution is next to impossible. This book contains mathematical terms related to arithmetic, algebra, trigonometry, geometry, analytic geometry, differential & integral calculus and differential equations, probability, statistics, logic etc. Appendices in the form of important formulas from algebra, geometry, trigonometry, calculus, logarithms and antilogarithms have been added. A few entries contain cross references indicating where to find further applications of the topic under discussion. It is an ideal manual for mathematics complete with illustrative diagrams and formulas. Inclusion of Greek Alphabets, metric systems and other useful mathematical symbols in the book helps make the dictionary a complete mathematical reference tool.