luminaria
/luːmɪˈnɛəriə/Definitions
1. noun
A decorative container filled with candles, usually placed outdoors to celebrate a holiday, especially the Day of the Dead.
“The luminaria on our front porch was a beautiful tribute to our ancestors.”
2. noun
A device that emits light, especially as used in astronomical or scientific research.
“The astronomers used a luminaria to study the galaxy’s properties.”