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Meaning of photobeam | Babel Free

Noun CEFR B2

Definitions

A beam of light whose interruption triggers a warning or a mechanism (such as a door).

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

photobehavior photobiliprotein photobiochemistry photobiography photobiologist photobiology