noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A unit of luminance equal to 1/π candela per square foot, or 3.426 candela per square meter.
2. 2
   a former luminance unit equal to one lumen per square foot wordnet

Synonyms

All synonyms

ft-l

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.