Dentin in which the primitive capillaries have remained uncalcified and so are wide enough to give passage to the formed elements of the blood. SYN: vascular dentin.
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va·so·den·tin .vā-zō-'dent-ən or va·so·den·tine -'den-.tēn n a modified dentin permeated by blood capillaries and common in the teeth of the lower vertebrates
Medical dictionary. 2011.