Related Clues:
- Photometry unit
- "__ Aeterna": Requiem Mass song
- Photometry measure
- Unit of light flux
- Latin word shared by the mottoes of Yale and Tufts
- Light unit half finishes beneath chimney
- Unit of illuminance
- Fortune's said to offer a little bright intensity
- '___ et veritas'
- Start of Yale's motto
- Measure of light's brightness
- First word in Yale's motto
- Light unit measurement's European norm initially
- Unit of perceived brightness
- Latin word in many academic mottos