polio
Word family nounpoliopoliovirus
po·li·o /ˈpəʊliəʊ $ ˈpoʊlioʊ/ (also poliomyelitis /ˌpəʊliəʊmaɪəˈlaɪtɪs $ ˌpoʊlioʊ-/ technical) noun [uncountableU] Origin polio (1800-1900) Modern Latin poliomyelitis, from Greek polios “gray” + myelos “bone marrow”