LONGEST ENGLISH LANGUAGE WORD

I got this information from the Internet. The longest English language word is "pneumonoultramicroscopicsilicovolcanocon". According to the Oxford English Dictionary it means 'a lung disease caused by the inhalation of volcanic ash, causing inflammation in the lungs.'"It occurs chiefly as an instance of a very long word.[1] The 45-letter word was coined to serve as the longest English word and is the longest word ever to appear in an English language dictionary. It is listed in the current edition of several dictionaries.[2]
Source(s):
wikipedia