Search Result for "fractionate": 
Wordnet 3.0

VERB (2)

1. separate into constituents or fractions containing concentrated constituents;

2. obtain by a fractional process; 



The Collaborative International Dictionary of English v.0.48:

Fractionate \Frac"tion*ate\, v. t.
   To separate (a mixture of chemical substances) into different
   portions or fractions, as in the distillation of liquids.
   [1913 Webster]


WordNet (r) 3.0 (2006):

fractionate
    v 1: separate into constituents or fractions containing
         concentrated constituents
    2: obtain by a fractional process