elec - emis
- electric charge
- electric currents
- electric dipoles
- electric fields
- electrical properties
- electricity
- electrodes
- electrodynamics
- electrographic cameras
- electromagnetic
- electromagnetic fields
- electromagnetic forces
- electromagnetic interactions
- electromagnetic radiation
- electromagnetic theory
- electromagnetic wave scattering
- electromagnetic waves
- electron beams
- electron density
- electron pumping
- electronic cameras
- electronic equipment
- electronics
- electronographic cameras
- electrons
- electrostatic waves
- element abundance
- element formation
- elementary particle scattering
- elementary particles
- elements of orbits
- elevation
- elevation angle
- ellipsoidal binary stars
- ellipsoidal variable stars
- elliptical galaxies
- elliptical orbits
