noun Date: 1971 a sometimes fatal hepatitis caused by a double-stranded DNA virus (species Hepatitis B virus of the genus Orthohepadnavirus, family Hepadnaviridae ) that tends to persist in the blood serum and is transmitted especially by contact with infected blood or other bodily fluids (as semen)
HEPATITIS B
Meaning of HEPATITIS B in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012