- cleavage, segmentation - (embryology) the repeated division of a fertilised ovum
--1 is a kind of cell division, cellular division
--1 is a part of pregnancy, gestation, maternity - division, partition, partitioning, segmentation, sectionalization, sectionalisation - the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart
--2 is a kind of separation
--2 has particulars: subdivision; septation; zoningDerived form: verb segment1