Term: round-trip light time: the elapsed time it takes for a signal to travel from Earth to a spacecraft (or other body) and back to the starting point
Candidate hypernym: elapsed time: the time that elapses while some event is occurring → 1
Candidate hypernym: tidal flow: the water current caused by the tides → 0
Candidate hypernym: jack of all trades: a person able to do a variety of different jobs acceptably well → 0
Candidate hypernym: wristwatch: a watch that is worn strapped to the wrist → 0
Candidate hypernym: malacostracan crustacean: a major subclass of crustaceans → 0
Candidate hypernym: jet lag: fatigue and sleep disturbance resulting from disruption of the body's normal circadian rhythm as a result of jet travel → 0
Candidate hypernym: plane: a level of existence or development → 0
Candidate hypernym: picofarad: a unit of capacitance equal to one trillionth of a farad → 0
Candidate hypernym: wormhole: hole made by a burrowing worm → 0
Candidate hypernym: ictalurus: channel catfishes → 0
Candidate hypernym: love lyric: the lyric of a love song → 0