Merriam-Webster's Visual Dictionary

Perfect for work, school, self-study, research, or browsing.
More than 8,000 highly detailed, full-color illustrations are organized by subject in specialized fields from all aspects of life. Many have been redrawn to modernize their design, such as for TV and medical equipment, while other illustrations for new technologies, such as touch screen smartphones, have been added. Includes more than 2,000 new illustrations. Nearly 25,000 up-to-date technical and everyday terms with clear, concise definitions.