Pronunciation: (jes'ō), [key]
1. gypsum or plaster of Paris prepared with glue for use as a surface for painting.
2. any plasterlike preparation to prepare a surface for painting, gilding, etc.
3. a prepared surface of plaster or plasterlike material for painting, gilding, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.