详细解释:n. 疾病, 弊病
【医】 [疾]病
词意辨析：
decease, disease这两个单词的拼写仅有一个字母不同。
decease: ／di'si: s／是“死亡”、“去世”；与death相比，decease是正式用语，常见于法律条文中。upon the decease of so-and-so，the sum of money will pass to his wife and children.
某某死后，整笔钱归他妻子及儿女所有。the decease rate in that country is very high.
那个国家的死亡率很高。the general's decease left the army without a leader.
将军死亡使这支军队群龙无首。
disease: ／di'zi:z／是“患病”、“疾病”。acute disease是“急性病”；chronic disease是“慢性病”； family disease是“遗传病”。the task of a doctor is to prevent or cure diseases.
医生的职责是预防或冶疗疾病。nowadays more and more people treat diseases by acupuncture.
如今愈来愈多人用针灸治疗疾病。your right lung is diseased.
你的右肺有病。illness, sickness, disease, complaint这些名词均有“疾病”之意。
illness: 不具体指，而是泛指一切疾病，强调生病的时间或状态，语体较sickness正式一些。
sickness: 较口语化，可与illness换用，但还可表示“恶心”。
disease: 指具体的疾病，且通常较严重，发病时间也较长。
complaint: 现代英语中，既可指症状，也可指疾病。英语解释：
名词 disease:
an impairment of health or a condition of abnormal functioning例句：
The rapid spread of the disease is alarming the medical authorities.这种疾病的迅速蔓延使医疗当局感到忧虑不安。