軟なん腐ぷ病びょうMeanings1nounsoft rotA plant disease caused by bacteria or fungi, leading to soft, watery decay of tissues. Common in vegetables and ornamentals.ジャガイモが軟腐なんぷ病びょうにかかって、収しゅう穫かく前まえに腐くさってしまった。The potatoes got soft rot and rotted before harvest.