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brown heart

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noun Plant Pathology.

a brown discoloration of the flesh of stored apples, resulting from high concentrations of carbon dioxide.

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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of brown heart

First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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