archiblast

[ ahr-kuh-blast ]
/ ˈɑr kəˌblæst /

noun Biology.

the formative part of the egg, as distinguished from the part that nourishes the embryo.

Origin of archiblast

First recorded in 1875–80; archi- + -blast
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019