— pneumococcal /nooh'meuh kok"euhl, nyooh'-/ , pneumococcic /nooh'meuh kok"sik, nyooh'-/ , pneumococcous /nooh'meuh kok"euhs, nyooh'-/ , adj.
/nooh'meuh kok"euhs, nyooh'-/ , n. , pl. pneumococci /-kok"suy, -see/ .
a bacterium, Diplococcus pneumoniae, causing lobar pneumonia and associated with cerain other diseases, as pericarditis and meningitis.
[ 1885-90; ]