-idesuff.1. Group of related chemical compounds: monosaccharide.2. Binary compound: sodium chloride, hydrogen cyanide.3. Chemical element with properties similar to another: lanthanide.[From (ox)ide.]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.-ide or -idsuffix forming nouns1. (Elements & Compounds) (added to the combining form of the nonmetallic or electronegative elements) indicating a binary compound: sodium chloride. 2. (Elements & Compounds) indicating an organic compound derived from another: acetanilide. 3. (Elements & Compounds) indicating one of a class of compounds or elements: peptide; lanthanide. [from German -id, from French oxide oxide, based on the suffix of acide acid]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014-ide or -id a suffix used in the names of chemical compounds. IDE intact dilatation and extraction. IDE Integrated Drive Electronics: a standard for computer interface ports that allows the disk controller of an IDE-compatible hard drive or CD-ROM drive to be integrated into the disk itself. Compare EIDE, SCSI. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.-ide A suffix used to form the names of various chemical compounds, especially the second part of the name of a compound that has two members (such as sodium chloride) or the name of a general type of compound (such as polysaccharide).The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.