sea lamprey 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 parasitic lamprey (Petromyzon marinus) of the N Atlantic that ascends streams to spawn: now landlocked in the Great Lakes, where it is highly destructive to lake trout
sea lamprey definition by American Heritage Dictionary
A large marine lamprey (Petromyzon marinus) common in the Great Lakes and parasitic to freshwater fish.