The American Heritage® Dictionary of the English Language, 4th Edition
n. Deposition of suberin on the walls of plant cells and their subsequent conversion into cork tissue.
the GNU version of the Collaborative International Dictionary of English
n. Conversion of the cell walls into cork tissue by development of suberin; -- commonly taking place in exposed tissues, as when a callus forms over a wound. Suberized cell walls are impervious to water.
The Century Dictionary and Cyclopedia
n. In botany, the transformation of a membrane or cell-wall into suberin or cork.
Word Usage
"Curing promotes suberization and creates a callus over damaged areas."