gamma

noun 0.695

ray gun

noun 0.672

cosmic ray

noun 0.670

radiation

noun 0.635

ray

noun 0.622

radio wave

noun 0.616

electromagnetic radiation

noun 0.612

photon

noun 0.608

alpha radiation

noun 0.604

death ray

noun 0.596

gravitational wave

noun 0.595

gamma function

noun 0.594

radio energy

noun 0.586

terahertz radiation

noun 0.582

synchrotron radiation

noun 0.581

beta radiation

noun 0.581

gravitational radiation

noun 0.581

thermal radiation

noun 0.577

sunray

noun 0.575

microwave radiation

noun 0.571

infrared radiation

noun 0.570

graviton

noun 0.567

ionizing radiation

noun 0.567

electron gun

noun 0.566

radioactive

noun 0.566

radiate

noun 0.565

ultraviolet radiation

noun 0.565

ultraviolet

noun 0.552

background radiation

noun 0.551

roentgenogram

noun 0.547

gluon

noun 0.545

electromagnetic wave

noun 0.545

beta particle

noun 0.543

gigahertz

noun 0.540

gray

noun 0.539

photoelectron

noun 0.539

non-ionizing radiation

noun 0.537

terahertz

noun 0.536

radiotherapy

noun 0.536

radiant

noun 0.536

radiation therapy

noun 0.534

infrared

noun 0.534

extreme ultraviolet

noun 0.533

gallium

noun 0.532

ultraviolet light

noun 0.532

radioactivity

noun 0.530

radio burst

noun 0.530

radiograph

noun 0.530

radiogram

noun 0.529

radium

noun 0.529

electromagnetic energy

noun 0.526

radionuclide

noun 0.525

radio frequency

noun 0.524

alpha emitter

noun 0.524

gyrotron

noun 0.522

radiographer

noun 0.520

synchrotron light

noun 0.519

solar radiation

noun 0.519

gauge boson

noun 0.519

laser beam

noun 0.518

erg

noun 0.518

gamma-aminobutyric acid

noun 0.516

cosmic background radiation

noun 0.514

cathode-ray tube

noun 0.513

gram

noun 0.512

diffraction grating

noun 0.510

radar

noun 0.510

radian

noun 0.509

gallium arsenide

noun 0.509

alpha particle

noun 0.508

grams

noun 0.507

laser

noun 0.507

caesium-137

noun 0.507

radiance

noun 0.506

visible light

noun 0.505

light gun

noun 0.505

radon

noun 0.504

radiometer

noun 0.504

gamma globulin

noun 0.502

rayon

noun 0.501

electromagnetic spectrum

noun 0.501

irradiance

noun 0.501

grey

noun 0.501

radiosity

noun 0.500