oidium


oid·i·um

noun \ō-ˈi-dē-əm\
plural -ia \-dē-ə\

Definition of OIDIUM

1
a :  any of a genus (Oidium of the family Moniliaceae) of imperfect fungi many of which are now considered to be conidial stages of various powdery mildews
b :  one of the small conidia borne in chains by various fungi (as an oidium) —called also arthrospore
2
:  a powdery mildew especially of grapes caused by an oidium

Origin of OIDIUM

New Latin, from o- + -idium
First Known Use: 1857

oid·ium

noun \ō-ˈid-ē-əm\   (Medical Dictionary)

Medical Definition of OIDIUM

1
capitalized : a genus of imperfect fungi of the family Moniliaceae including many which are now considered to be conidial stages of various powdery mildews
2
plural oid·ia \-ē-ə\ : any fungus of the genus Oidium
3
plural oidia : arthroconidium

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