The Collaborative International Dictionary
Symmetrizing
Symmetrize \Sym"me*trize\, v. t. [imp. & p. p. Symmetrized; p.
pr. & vb. n. Symmetrizing.] [Cf. F. sym['e]triser.]
To make proportional in its parts; to reduce to symmetry.
--Burke.
Wiktionary
symmetrizing
vb. (present participle of symmetrize English)