The Collaborative International Dictionary
Meroblastic
Meroblastic \Mer`o*blas"tic\, a. (Biol.) Consisting only in part of germinal matter; characterized by partial segmentation only; as, meroblastic ova, in which a portion of the yolk only undergoes fission; meroblastic segmentation; -- opposed to holoblastic.
Wiktionary
meroblastic
a. (context of a fertilized egg English) that undergoes only partial cleavage