We found 2 dictionaries that define the word luminous efficiencies:

General (2 matching dictionaries)

1. luminous efficiencies: Merriam-Webster
2. luminous efficiencies: Collins English Dictionary

▸ Words similar to luminous efficiencies ▸ Usage examples for luminous efficiencies ▸ Idioms related to luminous efficiencies ▸ Wikipedia articles (New!) ▸ Words that often appear near luminous efficiencies ▸ Rhymes of luminous efficiencies ▸ Invented words related to luminous efficiencies