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The undifferentiated cells of very young embryos, from which the primordial germ layers will evolve.
[proto- + G. derma, skin]


n. Botany
The primary meristem that gives rise to epidermis. Also called dermatogen.

pro′to·derm′al adj.
References in periodicals archive ?
The rare periclinal divisions observed in the protodermal cells of Piper crassinervium H.