Hear it
In a sentence
"Pneumonoultramicroscopicsilicovolcanoconiosis is an extremely rare lung disease caused by silica dust inhalation."
Quick facts
Letters
45
Difficulty
extreme
Origin
Greek
First letter
P
extreme · Greek
How to spell "pneumonoultramicroscopicsilicovolcanoconiosis"
A 45-letter extreme spelling bee word, likely of Greek origin.