What is pneumonoultramicroscopicsilicovolcanoconiosis? noun | A lung disease caused by the inhalation of very fine silicate or quartz dust, causing inflammation in the lungs. ... Due to the length of the word it is often abbreviated by language buffs to p45 (i.e. 45 characters).
It is a lungdiseasecaused by inhaling very fine volcanic ash and sand dust, It was created by the president of the National Puzzlers' League in 1935 during its annual meeting.
