Sport and exercise scientists now have one convenient reference for definitions of 3,000 terms. The Dictionary of the Sport and Exercise Sciences provides clear, comprehensive, reliable, and up-to-date definitions of terms common in the sport science literature. The Dictionary of the Sport and Exercise Sciences includes definitions from nine disciplines: adapted physical activity; biomechanics; exercise physiology (including body composition and cardiac rehabilitation); motor control; motor development; motor learning; sport pedagogy; sport psychology; sport sociology. Compiled by leaders in the field of sport and exercise science, the definitions in the Dictionary of the Sport and Exercise Sciences were derived from contemporary research journals and textbooks. Each definition was further reviewed by experts for correct usage, completeness, and conciseness. For terms with meanings that vary among disciplines, the Dictionary of the Sport and Exercise Sciences lists definitions for each discipline, helping users to identify areas of common ground and differences among the sport and exercise sciences. Definitions are cross-referenced by synonyms and antonyms and refer users to related definitions to further facilitate understanding of proper usage. The Dictionary of the Sport and Exercise Sciences promotes the comprehension and correct use of terminology among researchers, writers, educators, and undergraduate and graduate students, making it an invaluable resource for individuals and an indispensable reference for libraries. Researchers, writers, and educators will be able to confirm that they are using terms coherently and consistently with current literature in both their writing and their teaching. Sport science students can use the dictionary to understand terms that are unique to the sport and exercise sciences.