py·rol·y·sis
(pī-rŏl′ĭ-sĭs)n. Decomposition or transformation of a compound caused by heat.
py′ro·lyt′ic (-rə-lĭt′ĭk) adj.
py′ro·lyt′i·cal·ly adv.
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.
pyrolytically
(ˌpaɪrəˈlɪtɪkəlɪ) adv (Chemistry) in a pyrolytic manner
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014