Dictionary
ev•o•lute
Pronunciation: (ev'u-lOOt" or, esp. Brit., ē'vu-), [key]—
n. Geom.
the locus of the centers of curvature of, or the envelope of the normals to, another curve. Cf.
involute (def. 5).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.