lux /lʌks/noun 1verb 1forms 4 noun1 •In the International System of Units, the derived unit of illuminance or illumination; one lumen per square metre. Symbol: lxSome volunteers slept in ambient light of about 100 lux and some in only 3 lux, which is close to total darkness. — 2025 verb1 •(no longer used) To dislocate; to luxate.and as I reel'd I fell, / Lux'd the neck-joint—my soul descends to hell. — 1726 formsluxed · luxing · luxes · luces
