(chemistry) A piece of chemical engineering or laboratory apparatus that is used to separate the components of a mixture by fractionation, especially by fractional distillation or by chromatography.

plural of fractionator

A part of a whole, especially a comparatively small part. / (arithmetic) A ratio of two numbers, the numerator and the denominator, usually written one above the other and separated by a horizontal bar.

To divide or break into fractions.

Pertaining to a fraction. / Divided; fragmentary; incomplete. / Very small; minute. / (chemistry) Relating to a process or product of fractional distillation.

(grammar) An expression of a fractional number.

plural of fraction

Third-person singular simple present indicative form of fraction

present participle of fraction

(chemistry) A separation process in which a certain quantity of a mixture is divided up into smaller quantities (fractions) in which the composition changes according to a gradient.