Definition of oidiomycosis in US English:

oidiomycosis

(also oïdiomycosis)

noun

Medicine
rare
  • Infection with a fungus believed to belong to the genus Oidium; specifically †(a) blastomycosis (obsolete); (b) candidiasis, especially of the digestive tract in birds.

Origin

Early 20th century. From oidium + -o- + mycosis.

Pronunciation

oidiomycosis

/əʊɪdɪəʊmʌɪˈkəʊsɪs/