longest word definition english language
The longest word in any of the major English language dictionaries is pneumonoultramicroscopicsilicovolcanoconiosis, a word that refers to a lung disease contracted from the inhalation of very fine silica particles, specifically from a volcano; medically, it is the same as silicosis. Strengths is the longest word in the English language containing only one vowel. 2  Euouae, a medieval musical term, is the longest English word consisting only of vowels, and the word with the most consecutive vowels.