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1. (Plant Pathology) an abnormal darkening of the woody stems of some plants, thought to be caused by extreme cold
2. (Plant Pathology) any of various diseases of plants, such as the potato, in which the central tissues are blackened
3. (Plants) a variety of cherry that has large sweet fruit with purplish flesh and an almost black skin
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a disease of plants in which internal plant tissues blacken, usu. as a result of extremes in temperature.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||blackheart - any of various diseases in which the central tissues blacken|
plant disease - a disease that affects plants
|2.||blackheart - heart cherry with dark flesh and skin cherry|
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