cleavage division

cleav·age di·vi·sion

the rapid mitotic division of the zygote with decrease in size of individual blastomeres and the formation of a morula.
See also: cleavage (2).

cleav·age di·vi·sion

(klēv'ăj di-vizh'ŭn) The rapid mitotic division of the zygote with decrease in size of individual cells or blastomeres and the formation of a morula.
See also: cleavage (1)