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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 de·lam·i·na·tion /(ˌ)diˌlæməˈneʃən/

From: Webster's Revised Unabridged Dictionary (1913)

 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.