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Meaning of round-trip light time | Babel Free

Noun CEFR C1

Definitions

The amount of time required for an electromagnetic signal to travel from Earth to a spacecraft or another celestial body within the Solar System and then return.

countable, uncountable

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.
See all C1 English words →

See also

round-trip ticket round-trip time round-tripper round; hand roundabout roundabout dog

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