pneumonoultramicroscopicsilicovolcanoconiosis

[ noo-muh-noh-uhl-truh-mahy-kruh-skop-ik-sil-i-koh-vol-key-noh-koh-nee-oh-sis, nyoo- ]
/ ˈnu mə noʊˌʌl trəˌmaɪ krəˌskɒp ɪkˈsɪl ɪˌkoʊ vɒlˌkeɪ noʊˌkoʊ niˈoʊ sɪs, ˈnyu- /

noun

an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.

Origin of pneumonoultramicroscopicsilicovolcanoconiosis

< New Latin; see pneumono-, ultramicroscopic, silica, volcano, (pneumono)coniosis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019