Bible Dictionaries
Chromatoscope

Webster's Dictionary

(n.) A reflecting telescope, part of which is made to rotate eccentrically, so as to produce a ringlike image of a star, instead of a point; - used in studying the scintillation of the stars.

Bibliography Information
Webster, Noah. Entry for 'Chromatoscope'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​c/chromatoscope.html. 1828.