transmissivity

transmissivity [trans-mi-siv-i-tee, tranz-] Word Origin noun Physics.

1. 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 noun

1. 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