Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for fraction from the 1913 edition of Webster's Revised Unabridged Dictionary. Define fraction using one of the most comprehensive free online dictionaries on the web.

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Part of Speech: noun
Results: 4
2. A portion; a fragment.
Part of Speech: verb transitive
1. 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.
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