o·do·nate (?d?n-?t?, ?-d?n?-)n. Any of numerous predatory insects of the order Odonata, which includes the dragonflies and damselflies, characterized by a long, slender, often brightly colored body, two pairs of transparent veined wings, large compound eyes, and an aquatic larval stage.[From New Latin Od?nata, order name, from Greek od?n, tooth; see -odon.]o?do·nate? adj.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.odonate (???d??ne?t) n (Zoology) an insect, such as a dragonfly, that belongs to the zoological group Odonataadj (Zoology) relating to the zoological group OdonataCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014o?do?nate (?o?d n?e?t, o??d?n e?t) n. 1. any of numerous large predatory aquatic insects of the order Odonata, occurring worldwide and characterized by two pairs of membranous wings: includes damselflies and dragonflies. adj. 2. belonging or pertaining to the order Odonata. [