It has 45 letters!
Pronounciation:
[noo-muh-noh-uhl-truh-mahy-kruh-skop-ik-sil-i-koh-vol-key-noh-koh-nee-oh-sis, nyoo-]
What does it mean? An obscure term ostensibly referring to a lung diseasecaused by silica dust, sometimes cited as one of the longestwords in the English language.
Source: http://www.dictionary.com/browse/pneumonoultramicroscopicsilicovolcanoconiosis
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