leucoscope

English

Etymology

From leuco- +‎ -scope.

Noun

leucoscope (plural leucoscopes)

1. An instrument for testing the colour perception of the eye, or for comparing different lights in terms of their constituent colour or relative whiteness.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “leucoscope”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)