Langimage
English

transmittance

|trans-mit-tance|

C1

🇺🇸

/trænˈsmɪtəns/

🇬🇧

/trænzˈmɪtəns/

light passage

Etymology
Etymology Information

'transmittance' originates from the Latin word 'transmittere,' where 'trans-' meant 'across' and 'mittere' meant 'to send.'

Historical Evolution

'transmittere' transformed into the English word 'transmit,' and eventually became the modern English word 'transmittance.'

Meaning Changes

Initially, it meant 'to send across,' but over time it evolved into its current meaning of 'the fraction of light passing through a material.'

Meanings by Part of Speech

Noun 1

the fraction of incident light or radiation that passes through a material.

The transmittance of the glass was measured to determine its effectiveness in blocking UV rays.

Synonyms

Antonyms

Last updated: 2025/04/10 19:53