- emergency repair
- emergency signal
- emergency spillway
- emergency storage
- emergency tank
- emergency ward
- emergency water
- emergent
- emersion
- emery cake
- emery clothes
- emery stand
- emery wheel
- emery-paper
- emigrant
- emigration process
- eminent
- emissary
- emissary vein
- emissary veins
- emission
- emission current
- emission line
- emission spectrum
- emissive power
- emissivity
- emittance
- emitter diffusion
- emollient
- emotion
- empathy
- emphasize
- empire closure
- employ
- employee
- empty
- empty slot
- emptying outlet
- emulsified bitumen
- emulsifying
- emulsion machine
- en space
- enallogene
- enamel kiln
- enamel wire
- enameled wire
- enamelling
- encapsulating glass
- encipherer
- enclosing sheeting
- encoding channel
- encounter
- encrust
- encrypted file
- encryptor
- encystment
- end anchorage
- end condition
- emitted photon
- emitter
- emitter bias
- emitter follower
- emitter junction
- emitting-site
- emotional
- emphasis
- empire
- empiric
- empirical data
- empirical relationship
- empirical temperature
- employed population
- employer
- employment
- empty set
- empty space
- empty string
- empty track
- emptying works
- emulate
- emulation program
- emulator
- emulsification
- emulsify
- emulsifying machine
- emulsion adhesive
- emulsion coating
- emulsion paint
- emulsive
- enable
- enable pulse
- enabled
- enabled interrupt
- enamel
- enamel cloth
- enamel colour
- enamel lining
- enamel spreading
- enameled coating
- enameled tile