Relating to, caused by, or resembling a fungus or fungi; having the characteristics of a fungus such as being soft and spongy.
From Latin fungosus, derived from fungus (mushroom, fungus). The Latin origin is debated but may be related to fungari or may come from an unknown Italic source. In English, it has been used since at least the 17th century to describe fungal infections and fungal-like growths.
Doctors still use 'fungous infection' in medical terminology, but it's becoming less common as 'fungal' takes over—this is a great example of how Latin-derived adjectives sometimes get replaced by their modern forms even when the original is perfectly good.
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