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| | Longest word in English - Wikipedia, the free encyclopedia |
 | | The word pneumonoultramicroscopicsilicovolcanoconiosis, also spelled pneumonoultramicroscopicsilicovolcanokoniosis, is defined as "a lung disease caused by the inhalation of very fine silica or quartz dust." At 45 letters, it is certainly the longest word ever to appear in a non-technical dictionary of English, the Oxford English Dictionary. |
 | | The words so created are increasingly more contrived, however, and given that there is essentially no limit to their length (unless artificial constraints are introduced, such as not using any prefix more than once), it is dubious whether any of them can lay a claim to being the "longest" word. |
 | | It is the plural of a word found in Merriam-Webster's Collegiate Dictionary, 10th edition, which was the dictionary of reference in North American Scrabble play for base words of at least 10 letters, and their inflections of at least 10 letters, until June 16, 2003. |
| en.wikipedia.org /wiki/Longest_word_in_English (783 words) |
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