fungus
noun
[ ˈfʌŋɡəs ]
• any of a group of spore-producing organisms feeding on organic matter, including moulds, yeast, mushrooms, and toadstools.
• "truffles are fungi but not mushrooms"
Similar:
mushroom,
toadstool,
mould,
mildew,
rust,
fungal disease,
rot,
decay,
mycelium,
saprophyte,
Origin:
late Middle English: from Latin, perhaps from Greek spongos (see sponge).