1. The elapsed time it takes for light (or radio signals) to travel between the Earth and a celestial object
   - one-way light time

Type of: elapsed time

Encyclopedia: OWLT

• bioscope
• biosecurity
• biosphere
• biostatistics
• biosynthesis
• biosynthetic
• biosystematic
• biosystematics
• biosystematy
• biota
• biotech
• biotechnological
• biotechnology
• bioterrorism
• biotic
• biotic community
• biotin
• biotite
• biotitic
• biotope
• biotype
• biotypic
• biovular
• bioweapon
• biparous