volcanization
vol·ca·nize
(vŏl′kə-nīz′)tr.v. vol·ca·nized, vol·ca·niz·ing, vol·ca·niz·es
To subject to or change by the effects of volcanic heat.
vol′ca·ni·za′tion (-nĭ-zā′shən) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.