1. 浊音：4.浊音(dullness) 是一种音调较高、音响较弱、振动持续时间较短的非乐性叩诊音. 当叩击被少量含气组织覆盖的实质脏器时产生. 除音响外,板指所感到的振动亦弱. 如叩击心或肝被肺的边缘所覆盖的部分,或在病理状态下如肺炎(肺组织含气量减少)所表现的叩诊音.

2. 钝度, 迟钝：laziness n.怠惰, 无精打采 | dullness 钝度, 迟钝 | immoral adj.不道德的, 邪恶的, 放荡的, 淫荡的

3. 钝度：dullingagent 消光剂 | dullness 钝度 | dullsale 滞销

4. 迟钝：dull pain 钝痛 | dullness 迟钝 | dumbness 哑

noun

1. without sharpness or clearness of edge or point

e.g. the dullness of the pencil made his writing illegible

Synonym: bluntness

2. lack of sensibility

e.g. there was a dullness in his heart
without him the dullness of her life crept into her work no matter how she tried to compartmentalize it.

3. a lack of visual brightness

e.g. the brightness of the orange sky was reflected in the dullness of the orange sea

4. the quality of lacking interestingness

e.g. the stories were of a dullness to bring a buffalo to its knees

5. the quality of being slow to understand

Synonym: obtuseness