blue mould

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noun

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

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His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Words nearby blue mould

blue merle, blue mockingbird, blue mold, blue Monday, blue moon, blue mould, Blue Mountains, blue mud, blue murder, blue myrtle, blueness

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

How to use blue mould in a sentence

Through the negligence of the servant they have been hung up in a damp state, and had become covered with blue mould.
Punch, or the London Charivari, Vol. 1, August 7, 1841|Various
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 Cities|Charles Dickens
The chief condition in the existence of the blue mould is excessive moisture.
The Stock-Feeder's Manual|Charles Alexander Cameron
When ripe it is permeated by a blue mould, and resembles in flavour, appearance and consistency a rich old Stilton.
Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 9|Various

One is half inclined to look for a coating of blue mould over the streets and houses.
Under the Southern Cross|Maturin M. Ballou