From The Collaborative International Dictionary of English v.0.48:
Resorption \Re*sorp"tion\ (r?*s?rp"sh?n), n.
1. The act of resorbing; also, the act of absorbing again;
reabsorption.
[1913 Webster]
2. (Petrography) The redissolving wholly or in part, in the
molten magma of an igneous rock, of crystals previously
formed. The dissolved material may again solidify, giving
rise to a mass of small crystals, usually of a different
kind.
[Webster 1913 Suppl.]