arcus senilis中文什么意思

角膜弓

老年环

老人环

• arcus:    带状加厚; 弓 弧 弧状云; 弓 ...
• agrypnia senilis:    老年性失眠
• alopecia senilis:    老年脱发

英文释义

名词

1. a whitish deposit in the shape of an arc that is sometimes seen in the cornea
   同义词：arcus