- insulation category
- intake
- intake pressure
- intake shaft
- integral hinge
- inter-attraction
- intercalate texture
- interchanger
- intercrystalline crack
- interface
- interference noise
- interfoot
- insurance
- intercrystalline corrosion
- interdigitation
- interest
- interfacial angle
- interformational sheet
- intergranular corrosion
- interionic distance
- interlayer
- interlock texture
- interlocking
- inland ice
- inland sea
- inland trade
- inlet flange
- inner compound
- inner salt
- inoculum
- inorganic
- inorganic agent
- inorganic base
- inorganic binder
- inorganic chemistry
- inorganic compound
- inorganic polymer
- inoxidizable
- input
- input gas
- input pressure
- inquartation
- inquiry
- inrush
- insect oil
- insect powder
- insecticide
- insecticide oil
- inserted
- inside brake
- inside caliper
- inside pressure
- insoluble
- insoluble matter
- insoluble residue
- inspection
- inspection door
- inspection stamp
- inspissated oil
- installment
- installment system
- instantaneous concentration
- insulated tank
- insulating holder
- integral foam
- interbedding
- intercalary
- intercalation
- intercalated
- intercrystalline
- interface boundary
- interglacial
- intergranular porosity
- intergrowth
- interlock
- interlock clutch
- intermediate chemical
- intermediate coat
- intermediate compound
- intermediate cut
- intermediate detonator
- intermediate formation
- intermediate gear
- intermediate mass
- intermediate oil
- intermediate proof
- intermediate rock
- intermetallic compound
- intermittent discharge
- intermittent distillation
- intermittent production
- intermittent test
- intermolecular
- intermount basin
- internal circuit
- internal combustion
- internal crack
- internal diffusion
- internal heating
- internal moraine