the act of defining, or of making something definite, distinct, or clear: We need a better definition of her responsibilities.
the formal statement of the meaning or significance of a word, phrase, idiom, etc., as found in dictionaries. An online dictionary resource, such as Dictionary.com, can give users direct, immediate access to the definitions of a term, allowing them to compare definitions from various dictionaries and stay up to date with an ever-expanding vocabulary.
the condition of being definite, distinct, or clearly outlined: His biceps have great muscle definition.
Optics. sharpness of the image formed by an optical system.
Radio and Television. the accuracy of sound or picture reproduction.