- hoghead
- hogwallow
- hoist frame
- holding ring
- holed
- hollow
- hollow bullet
- holmium
- hollow shaft
- hollowed
- holohyaline
- homeostasis
- homeward cargo
- homogeneous medium
- homogeneous texture
- honey
- horizontal bedding
- horizontal permeability
- horizontal projection
- horizontal retort
- hornbeam
- hornblende
- hornblendite
- hornlead
- hot brittleness
- hot dip
- hot job
- hot rubber
- hot well
- hot-drawn
- hololeucocratic
- holopulping process
- holotype
- home consumption
- homeoblastic
- homeward freight
- homocline
- homocyclic
- homogeneity test
- homogeneous equilibrium
- homogeneous phase
- homogenized grease
- homologous series
- homology class
- homopolar bond
- homopolar series
- homopyrocatechol
- homotaxial deposit
- honeycomb cracking
- honeycomb rock
- hook stick
- hooking-on
- hopeite
- hops oil
- horizontal slicing
- hormone
- hornblei
- hornschist
- horse latitude
- hose clamp
- hose fittings
- host country
- host mineral
- host rock
- hot avalanche
- hot blast
- hot dump
- high flash
- high gloss
- high sea
- high tension
- holoaxial
- holocrystalline
- holyokeite
- home trade
- homoclinal structure
- homocyclic compound
- homogeneous body
- homogenizing device
- homogenous catalysis
- homopolymer
- honeycomb plastics
- honeystone
- hoosier pole
- hop
- horblende granite
- hordein
- horizontal dispersion
- horizontal joint
- horizontal plan
- horizontal strata
- horn
- horn mercury
- horn silver
- hornblende gneiss
- hornblende schist
- hornfels texture
- hornito
- horse back
- horsehair