noun, plural o·id·i·a [oh-id-ee-uh] /oʊˈɪd i ə/. Mycology.
Origin of oidium
Examples from the Web for oidium
The original vines on the estate perished in the late 19th century from oidium and phylloxera, and Klein Constantia shut down.Drink Like Nelson Mandela: South Africa’s Exciting New Wine|Jordan Salcito|December 14, 2013|DAILY BEAST
Berg, in 1839–41, showed that thrush is likewise due to a fungus, Oidium albicans.The Fundamentals of Bacteriology|Charles Bradfield Morrey
This occurs very rapidly under the attack of Oidium lactis accompanied by bacteria.
Grape mildew (Oidium Tuckeri) is prevalent in nearly all the vine areas.Notes on Agriculture in Cyprus and Its Products|William Bevan
This consists of bacteria of several forms, yeasts, Oidium lactis and accidental species of other molds.
In this ripening there is a prompt development of a heavy viscous slime, which consists of Oidium and bacteria.