- a part of a whole, especially a comparatively small part.
- (arithmetic) a ratio of two integers, the numerator and the denominator, usually written one above the other and separated by a vinculum (horizontal bar)
- (chemistry) a component of a mixture, separated by fractionation.
- In a Eucharistic service, the breaking of the Host.
Etymology: From Middle English fraccioun (a breaking), from Anglo-Norman, from Late Latin frÄctus (break).
- divide or break into fractions.
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Full Definition of fraction