Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: light hour
  1. The distance light travels in a vacuum in one hour; approximately one billion kilometres

Derived forms: light hours

Type of: astronomy unit

Part of: light year, light-year

Encyclopedia: Light hour

Nearest

light company
light cream
light cruiser
light diet
light filter
light fitting
light fixture
light flyweight
light globe
light heavyweight
light hour
light intensity
light machine gun
light meter
light microscope
light middleweight
light minute
light opera
light pen
light pollution
light reaction