reconstitution

noun
re·​con·​sti·​tu·​tion | \ (ˌ)rē-ˌkän(t)-stə-ˈt(y)ü-shən How to pronounce reconstitution (audio) \

Medical Definition of reconstitution

1 : the action of reconstituting or state of being reconstituted
2 : regeneration of an organic form by reorganization of existent tissue without blastema formation