DICT.TW Dictionary Taiwan

 de·lam·i·na·tion /(ˌ)diˌlæməˈneʃən/

 De·lam·i·na·tion n. Biol. Formation and separation of laminæ or layers; one of the methods by which the various blastodermic layers of the ovum are differentiated.
 Note: ☞ This process consists of a concentric splitting of the cells of the blastosphere into an outer layer (epiblast) and an inner layer (hypoblast). By the perforation of the resultant two-walled vesicle, a gastrula results similar to that formed by the process of invagination.
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