Bible Dictionaries
Sensitometer

Webster's Dictionary

(n.) An instrument or apparatus for comparing and grading the sensitiveness of plates, films, etc., as a screen divided into squares of different shades or colors, from which a picture is made on the plate to be tested.

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