Pneumono­ultra­micro­scopic­silico­volcano­coniosis (/ˌnjuːmənoʊˌʌltrəˌmaɪkrəˈskɒpɪkˌsɪlɪkoʊvɒlˌkeɪnoʊˌkoʊniˈoʊsɪs/ ⓘ[1][2]) is a 45-letter made-up word coined in 1935 by the then president of the National Puzzlers' League, Everett M. Smith. It has sometimes been used as a synonym for the occupational disease known as silicosis, but it should not be as most silicosis is not related to mining of volcanic dusts. It is the longest word in the English language published in a popular dictionary, Oxford Dictionaries, which defines it as "an artificial long word said to mean a lung disease caused by inhaling very fine ash and sand dust".[3]

Clinical and toxicological research conducted on volcanic crystalline silica has found little to no evidence of its ability to cause silicosis/pneumo­coniosis-like diseases and geochemical analyses have shown that there are inherent factors in the crystalline structure which may render volcanic crystalline silica much less pathogenic than some other forms of crystalline silica.[4][5]

Silicosis is a form of occupational lung disease caused by inhalation of crystalline silica dust, and is marked by inflammation and scarring in the form of nodular lesions in the upper lobes of the lungs. It is a type of pneumoconiosis and is known in the United Kingdom and eastern United States as the "black lung".

Etymology

Pneumono­ultra­micro­scopic­silico­volcano­coniosis is the longest word in the English language. The word can be analysed as follows:

  1. Pneumono: from ancient Greek (πνεύμων, pneúmōn) which means lungs
  2. ultra: from Latin, meaning beyond
  3. micro and scopic: from ancient Greek, meaning small looking, referring to the fineness of particulates
  4. silico-: from Latin, silicon
  5. volcano: from Latin, referring to volcano
  6. coni: from ancient Greek (κόνις, kónis) which means dust
  7. -osis: from ancient Greek, suffix to indicate a medical condition

This word was invented in the daily meeting from the National Puzzlers' League (N.P.L.) by its president Everett M. Smith. The word featured in the headline for an article published by the New York Herald Tribune on February 23, 1935, titled "Puzzlers Open 103rd Session Here by Recognizing 45-Letter Word":[6]

Pneumono­ultra­micro­scopic­silico­volcano­coniosis succeeded electro­photo­micro­graphically as the longest word in the English language recognized by the National Puzzlers' League at the opening session of the organization's 103rd semi-annual meeting held yesterday at the Hotel New Yorker. The puzzlers explained that the forty-five-letter word is the synonym of a special form of pneumoconiosis caused by ultra-microscopic particles of silica volcanic dust...

— As quoted from New York Herald Tribune[7] in reference[6]

Although it has been defined as an extension of pneumoconiosis, there is no scientific evidence for a similar disease related to volcanic silica particle exposures.[8]

Subsequently, the word was used in Frank Scully's puzzle book Bedside Manna, after which time, members of the N.P.L. campaigned to include the word in major dictionaries.[9][10]

This 45-letter word, referred to as "p45",[11] first appeared in the 1939 supplement to the Merriam-Webster New International Dictionary, Second Edition.[12]

Any references on the internet to pneumono­ultra­micro­scopic­silico­volcano­coniosis or silicosis being caused by 'sharp particles [which] lacerate lining of lungs; causing victim to leak air from their lungs while simultaneously bleeding into their lung cavity'[13] are inaccurate. Particles of a size able to enter the lung (< 10 μm diameter) gently settle on the lung lining rather than cutting or abrading the surface.

See also

Look up pneumonoultramicroscopicsilicovolcanoconiosis in Wiktionary, the free dictionary.

References

  1. ↑ "Pneumonoultramicroscopicsilicovolcanoconiosis". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 2020-03-22.
  2. ↑ "Pneumonoultramicroscopicsilicovolcanoconiosis". Merriam-Webster.com Dictionary.
  3. ↑ "Definition of pneumonoultramicroscopicsilicovolcanoconiosis in Oxford dictionary (British and World English)". Oxford Dictionaries. Oxford University Press. Archived from the original on 2012-07-19.
  4. ↑ Stewart, Carol; Damby, David E.; Horwell, Claire J.; Elias, Tamar; Ilyinskaya, Evgenia; Tomašek, Ines; Longo, Bernadette M.; Schmidt, Anja; Carlsen, Hanne Krage; Mason, Emily; Baxter, Peter J.; Cronin, Shane; Witham, Claire (2021-12-21). "Volcanic air pollution and human health: recent advances and future directions". Bulletin of Volcanology. 84 (1): 11. doi:10.1007/s00445-021-01513-9. ISSN 1432-0819.
  5. ↑ Horwell, Claire J.; Williamson, Benedict J.; Donaldson, Ken; Le Blond, Jennifer S.; Damby, David E.; Bowen, Leon (2012-11-19). "The structure of volcanic cristobalite in relation to its toxicity; relevance for the variable crystalline silica hazard". Particle and Fibre Toxicology. 9 (1): 44. doi:10.1186/1743-8977-9-44. ISSN 1743-8977. PMC 3574026. PMID 23164071.
  6. 1 2 Rochlin, Dara (2016-04-20). "Word Wednesday: Pneumonoultramicroscopicsilicovolcanoconiosis". Dara Rochlin Book Doctor. Archived from the original on 2023-08-12. Retrieved 2022-09-10.
  7. ↑ Staff (1935-02-23). "Puzzlers Open 103rd Session Here by Recognizing 45-Letter Word". New York Herald Tribune.
  8. ↑ Horwell, Claire J.; Baxter, Peter J. (2006-07-01). "The respiratory health hazards of volcanic ash: a review for volcanic risk mitigation" (PDF). Bulletin of Volcanology. 69 (1): 1–24. Bibcode:2006BVol...69....1H. doi:10.1007/s00445-006-0052-y. ISSN 1432-0819. S2CID 19173052. Archived (PDF) from the original on 2023-06-01. Retrieved 19 October 2023.
  9. ↑ Cole, Chris (1999). Wordplay, A Curious Dictionary of Language Oddities. Sterling. pp. 106–107. ISBN 0-8069-1797-0. Archived from the original on 19 October 2023. Retrieved 19 October 2023.
  10. ↑ Miller, D. Gary (2014). English Lexicogenesis. Oxford University Press. p. 217. ISBN 978-0-19-968988-0.
  11. ↑ Cole, Chris (1989). "The Biggest Hoax". Word Ways: The Journal of Recreational Linguistics. Archived from the original on 2014-08-10. Retrieved 2007-10-08.
  12. ↑ Miller, Jeff (2017-12-24). "A collection of word oddities and trivia: page 11, long words". A Collection of Word Oddities and Trivia. Archived from the original on 2021-04-27. Retrieved 2007-10-08.
  13. ↑ Bennett, Giles. "Pneumonoultramicroscopicsilicovolcanoconiosis". Corgin. Archived from the original on 2021-08-27. Retrieved 2022-12-17.
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