Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
any of an order (Collembola) of small, primitive, wingless insects, able to leap great distances by the sudden release of a forklike, abdominal appendage
Used by arrangement with John Wiley & Sons, Inc.
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.
Any of various small wingless insects of the order Collembola, having abdominal appendages that act as springs to catapult them through the air. Also called collembolan.