refractometer

[ ree-frak-tom-i-ter ]

noun

, Optics.

1. an instrument for determining the refractive index of a substance.

refractometer

/ rɪˌfræktəˈmɛtrɪk; ˌriːfrækˈtɒmɪtə /

noun

1. any instrument for determining the refractive index of a substance

Derived Forms

• ˌrefracˈtometry, noun
• refractometric, adjective

Other Words From

• re·frac·to·met·ric [ri-frak-t, uh, -, me, -trik], adjective
• refrac·tome·try noun

Word History and Origins

Origin of refractometer¹

First recorded in 1875–80; refract + -o- + -meter

Example Sentences

The index of refraction of the above solution may be taken with the Zeiss immersion refractometer or with the Abbe refractometer.

From Project Gutenberg

The Herbert-Smith refractometer is there described fully, its principle is explained and directions for using it are given.

From Project Gutenberg

Lacking a refractometer, the widely differing specific gravities of the two minerals would easily serve to distinguish them.

From Project Gutenberg