adjective.
Of, relating to, resembling, or characteristic of a fungus.
adjective.
Caused by a fungus.
The Century Dictionary and Cyclopedia
In botany, pertaining to or characteristic of a fungus or fungi; consisting of the Fungi or fungous plants; as, fungal growth; Lindley's fungal alliance.
noun.
A fungus.
the GNU version of the Collaborative International Dictionary of English