Authoritative and up-to-date, this bestselling dictionary is ideal reference for both students and non-scientists. Fully revised for this third edition, with over 1,000 new entries, it provides comprehensive coverage of biology (including human biology), chemistry, physics, the earth sciences, and astronomy. * 8,500 clear and concise entries * Commonly encountered terms from mathematics and computing * Up-to-date coverage of areas such as molecular biology, genetics, * particle physics, cosmology, and fullerene chemistry * Appendices include the periodic table, tables of SI units, and classifications of the plant and animal kingdoms This book is intended for school and first-year students, non-scientists wanting a general science dictionary.