Definition of Rtlt in English :
Define Rtlt in English
Rtlt meaning in English
Meaning of Rtlt in English
Pronunciation of Rtlt in English
Rtlt pronunciation in English
Pronounce Rtlt in English
Rtlt
see synonyms of rtltNoun
1. round-trip light time, rtlt
the elapsed time it takes for a signal to travel from Earth to a spacecraft (or other body) and back to the starting point
WordNet Lexical Database for English. Princeton University. 2010.