meroplankton 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.
an organism that spends only a part of its life cycle as a member of the plankton community (e.g., the barnacle or starfish, in which only the larval stages are planktonic)
Origin: ; from Classical Greek meros, part (see merit) plush plankton
meroplankton definition by American Heritage Dictionary
Any of various organisms that spend part of their life cycle, usually the larval or egg stages, as plankton.
- merˌo·plank·tonˈic adjective