the GNU version of the Collaborative International Dictionary of English
v. To make proportional in its parts; to reduce to symmetry.
The Century Dictionary and Cyclopedia
To make proportional in its parts; reduce to symmetry. Also spelled symmetrise.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. make symmetric
Word Usage
"If the owner gives you fullperm on an object then the symmetrizor can symmetrize it , but even without the tool, it's possible to copy it by hand since we can see all of its shape info in the build window."