panhypopituitarism/ˌpænˌhaɪpəʊpɪˈt(j)uːɪtəɹɪzəm/EtymologyFrom pan- + hypopituitarism.panhypopituitarism means A form of hypopituitarism affecting most of the pituitary hormones. Lexicurio rates it Rare gem — a strength score of 72 out of 100.nounA form of hypopituitarism affecting most of the pituitary hormones.