You searched for: “leucoscope”
leukoscope, leucoscope (s) (noun); leukoscopes; leucoscopes (pl)
An instrument devised for testing the color perception of the eyes: A leukoscope can be use for comparing different lights as to their constituent colors or their relative whiteness.

A leukoscope is a tool for testing the eyes to determine the ability to distinguish variations in colors or the intensity of lights.

This entry is located in the following units: leuko-, leuk-, -leukemia; alternate spellings: leuco-, leuc-, -leucemia (page 5) scopo-, scop-, scept-, skept-, -scope-, -scopy, -scopia, -scopic, -scopist (page 15)