Respuesta :
Pneumonoultramicroscopicsilicovolcanoconiosis is an artificial word that means lung disease caused by inhaling fine ash and sand dust. The synonym of it is silicosis. It is the longest word in the dictionary.
Answer:
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.
Explanation:
Totally not copy and pasted from g0ogle :/