The longest phrase within the English language is “Pneumonoultramicroscopicsilicovolcanoconiosis,” which refers to a lung illness brought on by inhaling very wonderful silica mud, typically present in volcanoes.
The phrase was coined by American doctor and creator Everett M. Smith in 1935. It’s composed of a number of Greek roots: “pneumono” (lung), “extremely” (very), “micro” (small), “silico” (silicon), “volcano” (volcano), and “coniosis” (mud illness). The phrase is 45 letters lengthy and has been listed within the Guinness Guide of World Data because the longest phrase within the English language since 1991.
