'Ustilago foetida' definitions:

Definition of 'Ustilago foetida'

From: GCIDE

Bunt \Bunt\ (b[u^]nt), n. (Bot.) A fungus (Ustilago f[oe]tida) which affects the ear of cereals, filling the grains with a fetid dust; -- also called pepperbrand. [1913 Webster]