The science or practice of measuring the degree of transparency or translucence in substances using optical instruments and techniques.
From Greek 'diaphanês' (transparent) + 'metron' (measure) plus the suffix '-y' (the practice or science of). This scientific field emerged in the 19th century alongside advances in optical physics.
Diaphanometry might sound obscure, but it's absolutely crucial for making sure your smartphone screen, car windshield, and camera lens are as clear as they're supposed to be—it's the science that keeps modern optics honest.
Complete word intelligence in one call. Free tier — 50 lookups/day.