the act of defining; determination of the limits; as, a telescope accurate in definition.-act of ascertaining and explaining the signification; a description of a thing by its properties; an explanation of the meaning of a word or term; as, the definition of "circle;" the definition of "wit;" an exact definition; a loose definition.-description; sort.-an exact enunciation of the constituents which make up the logical essence.-distinctness or clearness, as of an image formed by an optical instrument; precision in detail.