The Collaborative International Dictionary
Depurating
Depurate \Dep"u*rate\, v. t. [imp. & p. p. Depurated; p. pr. & vb. n. Depurating.] To free from impurities, heterogeneous matter, or feculence; to purify; to cleanse.
To depurate the mass of blood.
--Boyle.
Wiktionary
depurating
vb. (present participle of depurate English)