hot- - impa
- HZ
- I lattice
- i sampler pulverizer
- i sliding plate
- I-iron girder
- I-section
- I.C.T.
- i.d.
- I.I.M.
- i.r.
- iacs
- IB
- ice die
- ice-cold water
- ICI
- ID heating coil
- IDDRG
- ideal axial ratio
- ideal chemical compound
- ideal critical diameter
- ideal effervescive
- ideal liquid
- ideal solid
- ideal structure
- idealized crystal
- identical conditions
- identification
- identification by diffraction analysis
- identification mark
- identification marking
- identification of differentially coated electrolytic tinplate
- identification particulars
- identity distance
- identometer
- idiomorphic crystal
- idle hours
- idle pass
- idle period
- idle position
- idle pouring