Atka mackerel 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 commercially important ocean greenling (Pleurogrammus monopterygius) of the northern Pacific, esp. the area off the Aleutian Islands
also called Atka fish
Origin: after Atka Island, in the Aleutians
Atka mackerel definition by American Heritage Dictionary
A food fish (Pleurogrammus monopterygius) native to northern Pacific waters.