Definition of opacimeter in English:

opacimeter

noun

  • An instrument for measuring the opacity of a body or substance, especially by measuring the amount of light it reflects.

Origin

Early 20th century; earliest use found in Chemical Abstracts. From opac- + -imeter, after French opacimètre.

Pronunciation

opacimeter

/ˌəʊpəˈsɪmɪtə//əʊˈpasɪmiːtə/