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Meaning of phototelephony | Babel Free

Noun CEFR C2

Definitions

The transmission of sound by means of light.

dated, uncountable

CEFR level

C2

Mastery
This word is part of the CEFR C2 vocabulary — mastery level.

See also

phototelescope phototest phototesting phototheodolite phototherapeutic phototherapeutics