Webster's Revised Unabridged Dictionary · 1913

Definition

Definition , noun

[Latin definitio: compare French définition.]

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.
Definition being nothing but making another understand by words what the term defined stands for. — Locke
3.
Description; sort. [Rare]
A new creature of another definition. — Jer. Taylor
4.
(Logic) An exact enunciation of the constituents which make up the logical essence.
5.
(Optics) Distinctness or clearness, as of an image formed by an optical instrument; precision in detail.