megalecithal

meg·a·lec·i·thal

(meg'ă-les'i-thăl),
Denoting an egg rich in yolk, as in bony fishes, reptiles, and birds.
[mega- + G. lekithos, yolk]
Farlex Partner Medical Dictionary © Farlex 2012

megalecithal

pertaining to eggs which contain a large amount of yolk.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005