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The Collaborative International Dictionary of English v.0.48 (gcide)

Fractional \Frac"tion*al\, a.
1. Of or pertaining to fractions or a fraction; constituting
a fraction; as, fractional numbers.
[1913 Webster]

2. Relatively small; inconsiderable; insignificant; as, a
fractional part of the population.
[1913 Webster]

{Fractional crystallization} (Chem.), a process of gradual
and approximate purification and separation, by means of
repeated solution and crystallization therefrom.

{Fractional currency}, small coin, or paper notes, in
circulation, of less value than the monetary unit.

{Fractional distillation} (Chem.), a process of distillation
so conducted that a mixture of liquids, differing
considerably from each other in their boiling points, can
be separated into its constituents.
[1913 Webster]

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