Ophthalm. a chart for testing vision, typically containing letters, symbols, or pictures in rows of decreasing size that are to be read or identified at a fixed distance.
[ 1940-45 ]
Ophthalm. a chart for testing vision, typically containing letters, symbols, or pictures in rows of decreasing size that are to be read or identified at a fixed distance.
[ 1940-45 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012