Bubonic plague and Black Death

Bubonic plague noun - The most common form of the plague in humans; characterized by chills, prostration, delirium and the formation of buboes in the armpits and groin; does not spread from person to person.

Black Death and bubonic plague are semantically related in plague topic. In some cases you can use "Black Death" instead a noun phrase "Bubonic plague".

Black Death noun - The epidemic form of bubonic plague experienced during the Middle Ages when it killed nearly half the people of western Europe.

Bubonic plague and Black Death are semantically related in plague topic. You can use "Bubonic plague" instead a noun phrase "Black Death".