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. 1.

    An instrument for measuring the focus of the lens of the eye.

词源

From opto- + -meter.

来源:wiktionary