Definition

n.
  1. The act of defining; determination of the limits; as, a telescope accurate in definition.
  2. 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.
  3. Description; sort.
  4. (Logic) An exact enunciation of the constituents which make up the logical essence.
  5. (Opt.) Distinctness or clearness, as of an image formed by an optical instrument; precision in detail.