invisible differentiation


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che·mo·dif·fer·en·ti·a·tion

(kē'mō-dif'er-en-shē-ā'shŭn),
Differentiation of the cellular chemical constituents in the embryo before cytodifferentiation; sometimes recognizable histochemically.

invisible differentiation

[inviz′ibəl]
Etymology: L, in, not, visibilis, visible, differentia, difference
(in embryology) a fixed determination for specialization and diversification that exists in embryonic cells but is not yet visibly apparent. See also chemodifferentiation.