optometer
n. 视力计, 视力检定装置 [医] 视力计
发音
/ɑpˈtɑmətəɹ/
词形变化
optometers
复数
optometers
别名
optimeter
释义与例句
n.
-
1.
An instrument for measuring the focus of the lens of the eye.
词源
From opto- + -meter.
来源:wiktionary