Webster’s Revised Unabridged Dictionary · 1913
Meroblastic
Mer′o·blas′tic (·blăs′tĭk), 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.