A species of krill, Euphausia superba, found in the Antarctic Ocean, which is a primary food source for baleen whales and many other animals and is fished commercially.
Origin
1930s; earliest use found in Scientific Monthly.
Definition of Antarctic krill in US English:
Antarctic krill
noun
A species of krill, Euphausia superba, found in the Antarctic Ocean, which is a primary food source for baleen whales and many other animals and is fished commercially.