disease ilness的区别

illness
/'ilnis; 'ilnis/

---------- 1 ----------
[U] state of being ill in body or mind; lack of health 病; 疾病; 不健康:
* We've had a lot of illness in the family. 我们家的人患过很多病.
---------- 2 ----------
[C] type or period of illness 患的病; 患病期间:
* serious illnesses 重病
* recovering after a long illness 久病之後逐渐康复.

disease
/di'zi:z; di'ziz/
[C, U]
(case of) illness of the body, of the mind or of plants, caused by infection or internal disorder 疾病; 病患; （植物的）病害:
* a serious, infectious, incurable disease 重病、 传染性疾病、 不治之症
* a disease of the nervous system 神经系统的疾病
* prevent/spread disease 预防[传播]疾病.
派生： diseased adj suffering from a disease 患病的; 遭受病害的: diseased kidneys, leaves 患病的肾脏、 有病害的叶子
*
(fig 比喻) a diseased society, mentality, imagination 病态的社会、 病态的心理、 不健康的想像.

disease指大的疾病

而 iilness是ill的名词形式，泛指一些小的疾病