Definite /(?)/

Def·i·nite

Definite

Having certain or distinct; determinate in extent or greatness; limited; fixed; as, definite dimensions; a definite measure; a definite period or interval.
Elements combine in definite proportions.
— Whewell.
Having certain limits in signification; determinate; certain; precise; fixed; exact; clear; as, a definite word, term, or expression.
Determined; resolved. [Obs.]
Serving to define or restrict; limiting; determining; as, the definite article.

Definite article: the article the, which is used to designate a particular person or thing, or a particular class of persons or things; -- also called a definitive. See Definitive, n.
Definite inflorescence: See Determinate inflorescence, under Determinate.
Law of definite proportions: the essential law of chemical combination that every definite compound always contains the same elements in the same proportions by weight; and, if two or more elements form more than one compound with each other, the relative proportions of each are fixed. Compare Law of multiple proportions, under Multiple.