transmissivity

[ trans-mi-siv-i-tee, tranz- ]
/ ˌtræns mɪˈsɪv ɪ ti, ˌtrænz- /

noun Physics.

a measure of the ability of a material or medium to transmit electromagnetic energy, as light.
Compare transmittance.

Origin of transmissivity

First recorded in 1910–15; transmiss(ion) + -ive + -ity

British Dictionary definitions for transmissivity

transmissivity
/ (ˌtrænzmɪˈsɪvɪtɪ) /

noun

physics a measure of the ability of a material to transmit radiation, equal to the internal transmittance of the material under conditions in which the path of the radiation has unit length