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black mould

British  

noun

  1. another name for bread mould

"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

Example Sentences

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But months after the work was completed, the Wadleys discovered black mould was growing behind the insulation boards.

From BBC • Dec. 22, 2025

BBC News NI understands rot and black mould on floors and walls have been found in large areas of the building which opened in 2019.

From BBC • Mar. 5, 2025

It has peeling wallpaper, wet walls, large black mould patches and an overwhelming smell of damp.

From BBC • Feb. 10, 2025

One of them, Robert Degavino, 77, says his loft is full of black mould.

From BBC • Jan. 13, 2025

In Burhou the Storm Petrel bred mostly in holes in the soft black mould, which was also partly occupied by Puffins and Babbits, but occasionally under large stones and rocks.

From Birds of Guernsey (1879) And the Neighbouring Islands: Alderney, Sark, Jethou, Herm; Being a Small Contribution to the Ornitholony of the Channel Islands by Smith, Cecil