plesen
1. plesnoba, plesen
a fungus that produces a superficial (usually white) growth on organic matter [gliva, ki na organski snovi (običajno beli) tvori površinski sloj]
2. plesen
a fungus that produces a superficial growth on various kinds of damp or decaying organic matter [gliva, ki povzroča površinski razvoj na različnih mokrih ali gnijočih organskih snoveh]
3. plesen
any plant disease resulting in withering without rotting [katera koli bolezen rastlin, ki povzroči uvelost brez gnilenja]