- epitaxial transistor
- epitaxial wafer
- epitaxy reactor
- epoxy buffer
- equal span
- equalization curve
- equalizer circuit
- equalizing capacitor
- equatorial electrojet
- equatorial propagation
- equatorial region
- equatorial zone
- equilibrium flow
- equinoctial periods
- equinox
- equiperiod orbit
- equipment alarm
- equipment centre
- equipment disabled
- equipment layer
- equipment malfunction
- equipment signature
- equity
- elliptic filter
- emission criteria
- emission diode
- emitted intelligence
- emphasized marker
- employment record
- empty level
- emulsion
- enable gate
- encipher
- encoder
- endless loop
- entry corridor
- envelope detection
- environmental engineering
- environmental survey
- equivalent attenuation
- erase character
- erasing current
- erosive burning
- erroneous block
- error check
- error correction
- error density
- error detection
- error detector
- error indicator
- error message
- error pattern
- error range
- error rate
- error sensor
- error susceptibility
- error symbol
- escape character
- escape syntax
- escape velocity
- escape-ESC
- essential sidebands
- established post
- etching
- euronet
- evacuate
- even harmonic
- even pulse
- event recorder
- event variable
- equivalence factor
- erasing head
- erasure
- erroneous period
- error bunching
- error condition
- error notification
- error protection
- error second
- ESI profile
- estimated value
- except gate
- exception message
- exception operation
- exception response
- exception vector
- excess profits
- Exchange rate
- exchange switchboard
- excitation state
- exciter
- evanescent filed
- even permutation
- exception
- exception error
- exceptional condition
- excess attenuation
- exchange allocation
- exchange code
- exchange difference