: any of several rots involving the central part of a plant or plant organ: such as
: disintegration of the heartwood of a tree (as by fungi of the genus Fomes)
: a disease of beets and rutabagas caused by a fungus (Mycosphaerella tabifica) that brings about decay of the heart and blighting of the leaves
: a rot of sugar beets caused by boron deficiency

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Dictionary Entries Near heartrot

Cite this Entry

“Heartrot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heartrot. Accessed 30 May. 2024.

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