Also found in: Medical, Encyclopedia, Wikipedia.
Related to polyatomic: Polyatomic molecules
Of or relating to a molecule or ion that has two or more atoms as constituents.
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.
(Chemistry) (of a molecule) containing more than two atoms
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
|Adj.||1.||polyatomic - of or relating to a molecule made up of more than two atoms|
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.