blue-mold

blue mold

noun
1.
Also called green mold. any fungus of the genus Penicillium, which forms a bluish-green, furry coating on foodstuffs inoculated by its spores.
2.
Plant Pathology.
a.
a disease of plants, characterized by necrosis of leaves or fruit and the growth of bluish or grayish mold on affected parts, caused by any of several fungi, as of the genus Penicillium or Peronospora tabacina.
b.
downy mildew ( def 2 ).

Origin:
1655–65

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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