1. (noun) (physics) electromagnetic radiation that can produce a visual sensation

• light
• visible radiation

1. (noun) (physics) electromagnetic radiation that can produce a visual sensation

• actinic radiation
• actinic ray

1. (noun) (physics) electromagnetic radiation that can produce a visual sensation

• beam
• beam of light
• irradiation
• light beam
• ray
• ray of light
• shaft
• shaft of light
• candle flame
• candlelight
• corona
• counterglow
• gegenschein
• daylight
• firelight
• fluorescence
• friar's lantern
• ignis fatuus
• jack-o'-lantern
• will-o'-the-wisp
• gaslight
• glow
• glowing
• radiance
• glow
• glow
• incandescence
• half-light
• lamplight
• luminescence
• meteor
• shooting star
• moon
• moonlight
• moonshine
• scintillation
• starlight
• streamer
• sun
• sunlight
• sunshine
• torchlight
• twilight

1. (noun) (physics) electromagnetic radiation that can produce a visual sensation

• natural philosophy
• physics

1. (noun) (physics) electromagnetic radiation that can produce a visual sensation

• illume
• illuminate
• illumine
• light
• light up