- epimerization
- epirogenetic movement
- epithermal vein
- epoxide
- epoxidized oil
- epoxy adhesive
- epoxy binder
- epsom salt
- equal-falling
- equalizer
- equalizing gear
- equator
- equiaxed grain
- equilibrium diagram
- equilibrium distillation
- equilibrium equation
- equimolar
- equipment insurance
- equipment maintenance
- equipotential anomaly
- equitable parting
- Equity capital
- ellagic
- ellagitannin
- elliptone
- elutriation
- embedded scale
- emboss
- emerald
- emerged reef
- emergency
- emery cloth
- emery joint
- emollescence
- empty weight
- emulsifiable oil
- emulsified
- emulsifier
- emulsion number
- encaustic tile
- enclosed derrick
- enclosed sea
- enclosure
- end cut
- end moraine
- end seal
- endocrine
- endurance failure
- energy efficiency
- enfleurage
- engaging wax
- engine fuel
- engine house
- engine lacquer
- engine lubrication
- engine room
- engine sludge
- engineering department
- entombed
- entrainment separator
- entrance fee
- entrenched meander
- entry stump
- enzyme
- eogene system
- eolian sand
- eosphorite
- Eozoic era
- eozoon structure
- ephedrine
- ephesite
- epichlorhydrin
- epichlorite
- epicontinental sea
- epicontinental shelf
- equiviscous temperature
- erection plan
- erector
- erionite
- erlenmeyer flask
- erosion terrace
- erratic boulder
- eruptive
- eruptive cone
- erythrosine
- escape capsule
- eschwegeite
- eserien
- esmarkite
- esparto
- espichellite
- essential mineral
- essonite
- ester gum
- ester number
- esterellite
- esterification
- estuarine facies
- etched bearing
- etching solution