[trans-mi-siv-i-tee, tranz-]

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for transmissivity



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
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