My Online Dictionary

Presently, what is the longest word in the english dictionary?

Also if that word doesn't mean anything than what is the longest word in the english dictionary that has a meaning? Also if any of u know what's the name for a word that is the same read backwords & forwards like racecar?

Public Comments

1. Pneumonoultramicroscopicsilicovolcanoconiosis.ogg - a factitious word alleged to mean 'a lung disease caused by the inhalation of very fine silica dust found in volcanoes' but occurring chiefly as an instance of a very long word."[1]. It was coined to serve as the longest English word and is the longest word ever to appear in an English language dictionary. This 45-letter word, referred to as P45[2], first appeared in the 1939 supplement to the Merriam-Webster New International Dictionary, Second Edition[3]. It is listed in the current edition of several dictionaries.[4] A condition meeting the word's definition is normally called silicosis.
2. Level is a backward and forward word I don't know but the longest word in the world is a type a disease.
3. I thought the longest word was: antidisestablishmenttarianism: opposition to the withdrawal of state support or recognition from an established church, esp. the Anglican Church in 19th-century England. (It is the longest noncoined and nontechnical word.) I researched it and found that Pneumonoultramicroscopicsilicovolcanoconiosis is the longest word in a major dictionary. "a factitious word alleged to mean 'a lung disease caused by the inhalation of very fine silica dust found in volcanoes' but occurring chiefly as an instance of a very long word." Noon is a Palindrome...