 light_hour |
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| 1. | [ noun ] (astronomy) the distance light travels in a vacuum in one hour; approximately one billion kilometers | |
| Related terms: | astronomy_unit light_year | |
| Similar spelling: |
light_air light_year lighter light_reflex |
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| light_hour |
||
| 1. | [ noun ] (astronomy) the distance light travels in a vacuum in one hour; approximately one billion kilometers | |
| Related terms: | astronomy_unit light_year | |
| Similar spelling: |
light_air light_year lighter light_reflex |
|
