The term 'Type of Plague' can be answered with the word 'Bubonic', which is a seven-letter word. Bubonic plague is a highly contagious and often fatal disease caused by the bacterium Yersinia pestis. It is spread primarily through flea bites, and symptoms include fever, chills, and swollen lymph nodes. It was one of the most devastating pandemics in human history, killing an estimated 75 to 200 million people in Eurasia and North Africa during the 14th century.