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pneumonoultramicroscopicsilicovolcanoconiosis
/ˌno͞omənōˌəltrəˌmīkrəˌskäpikˌsiləkōvälˌkānōˌkōnēˈōsəs/
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noun
noun: pneumonoultramicroscopicsilicovolcanoconiosis
an invented long word said to mean a lung disease caused by inhaling very fine ash and sand dust.
Origin
1930s: a word invented (probably by Everett M. Smith, president of the National Puzzlers' League) in imitation of very long medical terms.
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