bubonic plague /bjuːˈbɑːnɪk-/ noun Learner's definition of BUBONIC PLAGUE
[noncount]
: a very serious disease that is spread especially by rats and that killed many people in the Middle Ages腹股沟淋巴结鼠疫,腺鼠疫(一种由老鼠传播的严重疾病,中世纪时许多人死于这种疾病) — compare black death