bioluminescence

noun 0.836

photoluminescence

noun 0.815

phosphorescence

noun 0.785

chemiluminescence

noun 0.775

fluorescence

noun 0.750

luminance

noun 0.731

electroluminescence

noun 0.730

luminosity

noun 0.729

thermoluminescence

noun 0.725

luminous energy

noun 0.715

sonoluminescence

noun 0.704

luminophore

noun 0.698

phosphorescent

noun 0.678

lum

noun 0.675

incandescence

noun 0.666

radiance

noun 0.654

glow

noun 0.651

nightglow

noun 0.646

glowing

noun 0.633

luminol

noun 0.629

luciferase

noun 0.628

luminous intensity

noun 0.628

fluorescent

noun 0.620

electrochemiluminescence

noun 0.618

luma

noun 0.611

illumination

noun 0.610

illuminance

noun 0.610

lucency

noun 0.607

scintillation

noun 0.606

luminaire

noun 0.602

luciferin

noun 0.595

luminosity function

noun 0.594

lumen

noun 0.593

airglow

noun 0.591

effulgence

noun 0.586

luster

noun 0.584

florescence

noun 0.580

luce

noun 0.578

visible light

noun 0.577

firelight

noun 0.577

lustre

noun 0.576

illuminate

noun 0.575

radiancy

noun 0.575

luminal

noun 0.572

lighting

noun 0.571

sunlight

noun 0.570

black light

noun 0.569

light

noun 0.568

luminaria

noun 0.567

translucence

noun 0.567

emission

noun 0.566

lamplight

noun 0.564

brightness

noun 0.563

lucigenin

noun 0.562

irradiance

noun 0.562

incandescent

noun 0.561

translucency

noun 0.561

iridescence

noun 0.560

glimmering

noun 0.559

electric light

noun 0.557

illuminant

noun 0.554

illumining

noun 0.554

light pollution

noun 0.552

opalescence

noun 0.551

light source

noun 0.551

luminosity distance

noun 0.549

radiation

noun 0.548

luz

noun 0.547

neon lighting

noun 0.547

lightness

noun 0.546

starlight

noun 0.545

glimmer

noun 0.545

gleam

noun 0.544

glow discharge

noun 0.544

phosphor

noun 0.544

refulgence

noun 0.544

fluorescence spectroscopy

noun 0.543

intrinsic brightness

noun 0.541

electromagnetic radiation

noun 0.541

lucidity

noun 0.539

coruscation

noun 0.539

emanation

noun 0.538

lumican

noun 0.537

fluorescent lamp

noun 0.536

white light

noun 0.534

light-emitting diode

noun 0.534

apparent brightness

noun 0.533

liveliness

noun 0.533

effervescence

noun 0.532

radioactivity

noun 0.530

neon light

noun 0.530

fluorescence microscopy

noun 0.529

noctiluca

noun 0.528

shimmer

noun 0.528

fluorometry

noun 0.527

radiant

noun 0.527

glisten

noun 0.525

phosphene

noun 0.525

light therapy

noun 0.524

reflectance

noun 0.524