老人环

【医】 arcus adiposus; arcus corneae; arcus pinguiculus; arcus senilis
gerontotoxon

老人的英语翻译：

elder; gaffer; grandsire; graybeard; old-timer; oldster; senior citizens
【医】 gero-; geronto-

环的英语翻译：

annulus; hem in; link; loop; ring; surround
【计】 ring up; toroid
【化】 ring
【医】 annuli; anulus; band; circle; circulus; cycle; cyclo-; gyro-; loop; orb
ring; verge