from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The collection of small marine crustaceans of the order Euphausiacea that are the principal food of baleen whales.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any of several small marine crustacean species of plankton in the order Euphausiacea in the class Malacostraca
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. shrimp-like planktonic crustaceans; major source of food for e.g. baleen whales
Norwegian kril, young fry of fish.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Dutch kriel ("puny/tiny"), applied to fish fry (in the sense of hatchlings); sometimes interpreted as "whale food". (Wiktionary)