morbidity和incidence

incidence
[5insidEns]
n.
落下的方式, 影响范围, [物理]入射

The act or an instance of happening; occurrence:
发生，出现：发生的行为或事件；出现：
did not expect criticism and was surprised by its incidence.
受到未预料的批评而感到吃惊
Extent or frequency of occurrence:
发生频率：出现的范围、程度或频率：
a high incidence of malaria in the tropics.
热带地区疟疾的高发率
Physics
【物理学】
The arrival of radiation or a projectile at a surface.
入射：辐射或投影到某一表面
Angle of incidence.
入射角

morbidity
[mC:5biditi]
n.
病态, 不健全, 发病率
【复数】 morbidities
The quality of being morbid; morbidness.
病态：处于疾病的状态；成病
The rate of incidence of a disease.
发病率：发生疾病的概率

morbidity
[mC:5biditi]
n.
病状, 病态
(一地方的)发病率, 致病率