The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
(also alecithal egg), an egg that contains little yolk. Oligolecithal eggs are typical of all higher mammals, some marsupials, and many invertebrates, for example, flatworms.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.