radiance

noun 0.840

radiant

noun 0.754

radiosity

noun 0.743

radian

noun 0.698

irradiance

noun 0.689

radiate

noun 0.665

radiation

noun 0.651

reflectance

noun 0.648

luminosity

noun 0.635

reflectivity

noun 0.634

luminance

noun 0.634

refulgence

noun 0.617

radiometry

noun 0.617

thermal radiation

noun 0.616

radium

noun 0.600

brilliancy

noun 0.596

incandescence

noun 0.595

rightness

noun 0.593

effulgence

noun 0.586

radiation pressure

noun 0.580

luminescence

noun 0.575

solar radiation

noun 0.566

superradiance

noun 0.560

luminous intensity

noun 0.560

luminous energy

noun 0.559

radion

noun 0.559

brilliance

noun 0.559

radiometer

noun 0.559

rad

noun 0.558

lucency

noun 0.557

ray

noun 0.555

radiative balance

noun 0.555

refractivity

noun 0.552

shininess

noun 0.551

emissivity

noun 0.550

radar

noun 0.547

illuminance

noun 0.544

brightness

noun 0.543

radiolucency

noun 0.543

radius

noun 0.542

specularity

noun 0.542

electromagnetic radiation

noun 0.538

radiator

noun 0.537

intrinsic brightness

noun 0.535

apparent brightness

noun 0.534

radioactivity

noun 0.534

rayon

noun 0.533

resplendence

noun 0.529

scintillation

noun 0.529

radio energy

noun 0.528

sunray

noun 0.527

radiodensity

noun 0.527

vibrance

noun 0.526

steradian

noun 0.525

translucency

noun 0.521

transmissivity

noun 0.521

spectrality

noun 0.520

shine

noun 0.520

iridescence

noun 0.518

infrared radiation

noun 0.517

radiology

noun 0.517

fluorescence

noun 0.513

shining

noun 0.512

transmittance

noun 0.510

glare

noun 0.510

illumination

noun 0.510

bright

noun 0.510

luster

noun 0.509

glossiness

noun 0.508

microwave radiation

noun 0.508

rapidity

noun 0.505

gleaming

noun 0.504

lucidity

noun 0.504

coruscation

noun 0.504

synchrotron radiation

noun 0.503

radius vector

noun 0.502

sunlight

noun 0.500