WordReference Random House Unabridged Dictionary of American English © 2026
lu′minous range′, [Navig.]
- Nautical, Naval Termsthe distance at which a certain light, as that of a lighthouse, is visible in clear weather, disregarding interference from obstructions and from the curvature of the earth and depending on the power of the light.
'luminous range' also found in these entries (note: many are not synonyms or translations):