/ri sawrp"sheuhn, -zawrp"-/ , n.
1. the destruction, disappearance, or dissolution of a tissue or part by biochemical activity, as the loss of bone or of tooth dentin.
2. Also called reabsorption . the selective uptake into the bloodstream of substances previously filtered out of the blood.
[ 1810-20; RE- + (AB)SORPTION; cf. F résorption ]