blossom-end rot

[ blos-uh m end ]
/ ˈblɒs əm ˌɛnd /

noun Plant Pathology.

a disease of tomato and pepper caused by a deficiency of calcium, characterized by decay at the blossom end of the fruit.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019