Definition of subfumigation in US English:

subfumigation

noun

historical
  • Suffumigation.

Origin

Late Middle English; earliest use found in John Gower (d. 1408), poet. From Anglo-Norman and Middle French subfumigacion from post-classical Latin suffumigation-, suffumigatio, with alteration after classical Latin sub-.

Pronunciation

subfumigation

/ˌsʌbfjuːmɪˈɡeɪʃn/