frac·tion·ate 
(fr
ăk
sh
ə-n
āt
′)
v. frac·tion·at·ed, frac·tion·at·ing, frac·tion·ates
v.tr.1. To divide or separate into parts; break up: "In the post-Watergate era, power has been fractionated on Capitol Hill" (Evan Thomas).
2. To separate (a chemical mixture) into components, as by distillation or crystallization.
v.intr.1. To divide or separate into parts: "Languages have an extraordinary capacity to fractionate into mutually unintelligible dialects" (Robin Dunbar).
2. To undergo chemical separation, as by distillation or crystallization.
frac′tion·ation n.
fraction·a′tor n.