1. The elapsed time it takes for a signal to travel from Earth to a spacecraft (or other body) and back to the starting point
   - round-trip light time

Type of: elapsed time

Encyclopedia: RTLT

• river gum
• river horse
• River Kasai
• River Lethe
• river limpet
• river otter
• river pear
• river prawn
• river red gum
• River Severn
• river shad
• River Styx
• River Thames
• River Trent
• River Tyne
• Rivera
• riverbank
• riverbed
• riverfront
• riverine
• riverside
• rivet
• rivet line
• riveter
• riveting