glossmeter

[ glos-mee-ter, glaws- ]
/ ˈglɒsˌmi tər, ˈglɔs- /

noun

an instrument for measuring the reflectivity of a surface.
Also called glos·sim·e·ter [glo-sim-i-ter, glaw-] /glɒˈsɪm ɪ tər, glɔ-/.

Origin of glossmeter