Pneumonoultramicroscopicsilicovolcanoconiosis is an invented long word said to mean a lung disease caused by silica dust.It is the longest word in the english language published in the oxford dictionary.
It is pronounced as:
[noo-muh-noh-uhl-truh-mahy-kruh-skop-ik-sil-i-koh-vol-key-noh-koh-nee-oh-sis, nyoo-]
