Pronunciation: (vej'i-tāt"), [key]
—v.i., -tat•ed, -tat•ing.
1. to grow in, or as in, the manner of a plant.
2. to be passive or unthinking; to do nothing: to lie on the beach and vegetate.
3. Pathol.to grow, or increase by growth, as an excrescence.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.