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Borrowed from Latin fulguratio (sheet lightning), fulgurationis, from fulgurō, from fulgur (lightning).


  • (UK) IPA(key): /ˌfʌl.ɡjʊˈɹeɪ.ʃən/
  • (US) IPA(key): /ˌfʊl.ɡjəˈɹeɪ.ʃən/, /ˌfʊl.ɡəˈɹeɪ.ʃən/


fulguration (countable and uncountable, plural fulgurations)

  1. A flash of lightning
  2. (medicine) cauterization with electricity; electrocautery
  3. (chemistry, obsolete) The sudden brightening of a fused globule of gold or silver, when the last film of the oxide of lead or copper leaves its surface


  • (sudden brightening of fused globule): blick

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for fulguration in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)