- exposure hazard
- extension
- extension ring
- extension tube
- extensive quantity
- explosive decompression
- exponential growth
- exposure latitude
- extra-spectral
- extension tripod
- eyeglass
- eyepiece
- extranuclear
- exert
- exhaust
- exhaust cam
- exhaust developer
- exhaust loss
- exothermal
- expansible
- expansion bellows
- expansion tank
- expansion tube
- facetted ring
- fan heater
- Faraday cylinder
- eyecup
- eyepiece lens
- fade out
- failure analysis
- experimental physicist
- explosion bolt
- exposure factor
- exposure index
- exposure rate
- extensometer
- external friction
- extrared
- experimental model
- exposure meter
- exposure risks
- extension bellows
- extension pipe
- external force
- extraction hood
- eye ring
- face gap
- Faraday tube
- fast burst
- fast developer
- fast fission
- fast neutron
- fast particle
- fatigue properties
- fecder
- feed component
- feed enrichment
- feed gear
- feeder pipe
- feeding process
- feedline
- ferroelectric
- fiber drum
- fiber optics
- fiberoptic transmission
- fibre drum
- fibrous fracture
- field
- field direction
- field force
- field waveguide
- file picture
- filler metal
- filling
- film base
- film holder
- film rack
- film speed
- filter
- filter membrane
- fermi limit
- fermi sphere
- ferromagnetism
- fetch phase
- fiber axis
- fiber gasket
- fiberoptic connector
- fibre gasket
- fibreoptic transmission
- FINGAL process
- finite automaton
- finned can
- fire area
- fire load
- fire station
- fire tube
- fireclay brick
- firework display
- femtotechnology
- fermi surface