fractionation
frac·tio·na·tion
noun
2.
separation into portions
Origin
By surface analysis, fraction + -ation, or, by surface analysis, fractionate + -ion.
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.