Fraction

Webster's Dictionary of the English Language

·noun A portion; a fragment.

II. Fraction ·noun The act of breaking, or state of being broken, especially by violence.

III. Fraction ·noun One or more aliquot parts of a unit or whole number; an expression for a definite portion of a unit or magnitude.

IV. Fraction ·vt To separate by means of, or to subject to, fractional distillation or crystallization; to Fractionate;

— frequently used with out; as, to fraction out a certain grade of oil from pretroleum.