English
reflectometer
From reflect + -o- + -meter.
Today it means
noun An instrument used to measure the reflectance of a surface.
Sources
Sources: Wiktionary, “reflectometer”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / reflectometer