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blue stain

noun

, Plant Pathology.
  1. a serious fungal disease of certain trees that reduces the economic value of the timber, caused by various species of the genus Ceratocystis.


blue stain

noun

  1. forestry a bluish discoloration of sapwood caused by growth of fungi
“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


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Example Sentences

The face and body were painted with red and white ochre and a blue stain.

The young trapper had, in effect, hit the mark in the very centre, as the blue stain of the bullet testified.

He looked out to where a channel made a deep blue stain through the paler cerulean of the sea.

They opened the shirt tenderly, and there, on the right breast, saw a dull blue stain with a crimson thread in the middle of it.

They may be counted in leukæmic blood with the aid of the triacid or eosine-methylene blue stain.

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