noun (plural pneumococci) Etymology: New Latin Date: 1890 a bacterium ( Streptococcus pneumoniae ) that causes an acute pneumonia involving one or more lobes of the lung, pneumococcal adjective
PNEUMOCOCCUS
Meaning of PNEUMOCOCCUS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012