stratum basale

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Noun1.stratum basale - the innermost layer of the epidermisstratum basale - the innermost layer of the epidermis
epidermis, cuticle - the outer layer of the skin covering the exterior body surface of vertebrates
stratum - one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock)
References in periodicals archive ?
Epidermis is stratified into four layers according to the stage of keratinocyte differentiation: stratum corneum, stratum granulosum, stratum spinosum, and stratum basale.
Squamatisation of stratum basale, Vacuolization of spaces between stratum basale layer seen.
Where vitamin D is concerned, however, it's the stratum basale and stratum spinosum that are the most important.