The Collaborative International Dictionary
Alecithal
Alecithal \A*lec"i*thal\, a. [Gr. 'a priv. + ? yelk.] (Biol.)
Applied to those ova which segment uniformly, and which have
little or no food yelk embedded in their protoplasm.
--Balfour.
Wiktionary
alecithal
a. (context biology of an ovum English) Tending to segment uniformly, and having little or no yolk embedded in the protoplasm.