This book provides clearly-written, easy-to-understand definitions for over 4,500 terms. In addition to covering the more traditional areas of the field, this fourth edition also defines the terminology of the rapidly advancing areas of "small size" mechanical engineering: micromachining and nanotechnology. Nomenclature used in the manufacture of composites has also been added. Extensively cross-referenced, the Dictionary is an indispensable desk reference for mechanical engineers worldwide. Co-published by SAE and Butterworth-Heinemann.