An invented long word said to mean a lung disease caused by inhaling very fine ash and sand dust.‘Pneumonoultramicroscopicsilicavolcanoconiosis is a form of the illness pneumoconiosis, caused by the inhalation of a fine silica dust found in most volcanoes.’
- ‘Thus, pneumonoultramicroscopicsilicovolcanoconiosis is a disease of the lungs resulting from the inhalation of very fine silicate or quartz dust’
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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