blue mould
- Also called: green mould any fungus of the genus Penicillium that forms a bluish mass on decaying food, leather, etc
- any fungal disease of fruit trees characterized by necrosis and a bluish growth on the affected tissue: mostly caused by Penicillium species
Show More
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for blue mould
Historical Examples
They kept him in a dark place, like a cheese, until he had the full Tellson flavour and blue-mould upon him.
A Tale of Two CitiesCharles Dickens