multicellular organism adult organism adults UMLS:C0001675 http://neurolex.org/wiki/Category:Adult_organism FBbt:00003004 galen:Adult HAO:0000087 NCIT:C17600 TAO:0002046 BILA:0000078 adult A multicellular organism that existence_ends_with a post-juvenile adult stage and existence_starts_with a post-juvenile adult stage.