Definition of "suborder" [sub•or•der]

• Biology A taxonomic category of related organisms ranking between an order and a family. (noun)
• A subdivision of a category termed an order. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This is not a grasshopper, but rather, a member of the same order, but classified as the suborder Ensifera of Long-Horned Orthoperta, and the family Tettigoniidae of Katydids, and the subfamily Conocephalinae of Coneheads."
• "The Iguanidae family is only one of about 17 families of the lacertilian suborder; it includes the subfamilies of iguana iguanas (green) and spiny-tailed (black) iguanas which are abundant in the Puerto Vallarta, Mexico area."
• "Iguanas are one of the five generally recognized infraorders of the lacertilian suborder of reptiles which includes all lizards."