1. Relating to mushrooms or fungi.
2. A fungus with a large cap resembling an umbrella with numerous radiating gills on the underside. Some types are edible and some are poisonous
3. A preparation of rotten wood mixed with fungi or dried mushrooms.

A white, tasteless, odorless powder extracted from the fungus Polyporus officinalis.

It has been used to treat diarrhea, reduce bronchial secretions, and reduce night sweats.