superorder definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a natural subdivision between an order and a class or subclass of plants or animals
superorder definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A taxonomic category of related organisms ranking below a class or subclass and above an order.
superorder - Science Definition
A taxonomic category of related organisms ranking below a class or subclass and containing one or more orders.