brown heart

noun

Definition of brown heart

  1. 1 :  acapu

  2. 2a :  a physiological disease of stored apples and pears caused by too great a concentration of carbon dioxide and characterized by internal browning b :  a disease of turnips and related plants caused by a deficiency of boron and characterized by gray or brownish mottling of the outer xylem region of the root

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to cast off or become cast off

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