[əʊˈɪdɪəm], (Noun)

Definitions:
- a type of fungal spore (conidium) formed by the breaking up of fungal hyphae into cells, especially as produced by powdery mildews

- a fungal disease affecting vines, caused by a powdery mildew


Phrases:

Origin:
mid 19th century: modern Latin, from Greek ōion ‘egg’ + the diminutive suffix -idion