blue mould

British  

noun

1. Also called: green mould.  any fungus of the genus Penicillium that forms a bluish mass on decaying food, leather, etc

2. any fungal disease of fruit trees characterized by necrosis and a bluish growth on the affected tissue: mostly caused by Penicillium species

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Example Sentences

See Examples For:

blue mould

Bread with white and blue mould on it is fine to cut around and eat but black mould is dangerous.

From BBC ● Oct. 24, 2014

Through the negligence of the servant they have been hung up in a damp state, and had become covered with blue mould.

From Punch, or the London Charivari, Volume 1, August 7, 1841 by Various

Books kept in any basement room, or near any wall, absorb moisture with avidity; both paper and bindings becoming mildewed, and often covered with blue mould.

From A Book for All Readers An Aid to the Collection, Use, and Preservation of Books and the Formation of Public and Private Libraries by Ainsworth Rand Spofford

There were fires in many of the rooms, for Mr. Lansdell's servants had a wholesome terror of that fatal blue mould which damp engenders upon the surface of a picture.

From The Doctor's Wife by M. E. (Mary Elizabeth) Braddon

There was, indeed, danger of coming out covered with blue mould.

From The Californians by Gertrude Franklin Horn Atherton