Dictionary

oidium

noun oid·i·um \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

oidium

noun oid·ium \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

Browse

Next Word in the Dictionary: oiko-Previous Word in the Dictionary: oidioidAll Words Near: oidium
March 31, 2015
refluent Hear it
Flowing back
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears