- vitaminAny of a specific group of organic compounds essential in small quantities for healthy human growth, metabolism, development, and body function. They are found in minute amounts in plant and animal foods or sometimes produced synthetically, and deficiencies of specific vitamins produce specific disorders.
- vitaA hagiography; a biography of a saint.
- vitalometerA device used to test the vitality of the dental pulp.
- vitascopeAn early machine for exhibiting animated pictures.
- vitasphereThe portion of the Earth that contains living organisms.
- vitologyAn approach to healthy living promoted in the late 19th and early 20th century.