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

• hematocytopenia
• hematocyturia
• hematogenesis
• hematogenic
• hematohiston
• hematoidin
• hematologic
• hematological
• hematologist
• hematology
• hematolysis
• hematoma
• hematopoeitic stem cell
• hematopoiesis
• hematopoietic
• hematuria
• heme
• hemeralopia
• hemerobiid
• hemerobiid fly
• Hemerobiidae
• Hemerocallidaceae
• Hemerocallis
• Hemerocallis flava
• Hemerocallis lilio-asphodelus