Medical Definition of stratum basale
plural strata basalia \-lē-ə\play
1: the basal layer of the epidermis consisting of a single row of columnar or cuboidal epithelial cells that continually divide and replace the rest of the epidermis as it wears away—called also stratum germinativum; see malpighian layer
2: the deep layer of the endometrium that is between the stratum spongiosum and the myometrium and that is retained during menstruation
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