-tomesuff.1. Part; area; segment: dermatome.2. Cutting instrument: microtome.[New Latin -tomus, from Greek -tomos, a cutting, from tomos; see tome.]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.-tome n combining form indicating an instrument for cutting: osteotome. [from Greek tom? a cutting, tomos a slice, from temnein to cut]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014tome (to?m) n. 1. a book, esp. a very heavy, large, or learned book. 2. a volume forming a part of a larger work. [1510?20;