engi - exon
- equivalent sphere diameter distribution
- equivalent stress
- equivalent stress versus equivalent strain curve
- equivalent trees
- equivalent value of population number
- equivalent-lens theory of holographic imaging
- equivi-cohesive temperature
- ER
- ER spectra
- ERA
- ERAE
- erasability of hologram
- erasable hologram
- erasable holographic record(ing)
- erasable holographic record(ing)
- erase character
- erase heater
- erase instruction
- erase line
- erase relay
