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oidium

Oidium is a 6 letter word which starts with the letter O and ends with the letter M for which we found 1 definitions.

Definition
(n.) A genus of minute fungi which form a floccose mass of filaments on decaying fruit etc. Many forms once referred to this genus are now believed to be temporary conditions of fungi of other genera among them the vine mildew (Oidium Tuckeri) which has caused much injury to grapes.
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