A white opacity or film that forms on the cornea of the eye, or a genus of water molds that cause white rust disease in plants.
From Latin albugo, derived from albus meaning 'white,' describing both the white appearance of eye defects and the white spores of plant pathogens.
Interestingly, albugo can refer to either a clouding in the human eye or a destructive plant pathogen—the shared 'whiteness' is why both conditions got the same Latin name centuries ago.
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