- Taconi revolution
- tagged compound
- Tagliabue hydrometer
- tail chain
- tail post
- tail race
- tail rod
- tail shaft
- tail stock
- taker
- talc
- talc slate
- tall oil
- tamped density
- tan waste
- tank bottom
- tank capacity
- tank pressure
- tank station
- tanker
- tannic
- tannin
- tanning vat
- tar separation
- tar test
- tariff
- tarpaulin
- tarred
- telescoped vein
- telescopic derrick
- telescopic oiler
- telethermometer
- tellerette
- tellurate
- telluric silver
- tellurite
- tellurium nitrate
- telmatic peat
- telopeptide
- temper
- temper carbon
- temper graphite
- tempera
- temperature balance
- temperature controller
- temperature difference
- temperature drop
- temperature effect
- temperature log
- temperature recorder
- temperature strain
- template
- temporary gel
- telescope pole
- telltale
- telluric current
- telluric water
- telluride
- temper brittleness
- temper test
- temperature range
- tempered steel
- tempering bath
- tensile
- tensile elongation
- tensile property
- tensile strain
- tensility
- tensimeter
- tensiometer
- tension
- tension crack
- tension fissure
- tension post
- tension screw
- tension set
- tension shackle
- tensional joint
- terap
- terbic acid
- term clause
- terminal line
- ternary alloy
- terpene
- terra alba
- terra cotta
- terrene
- terrestrial facies
- terrigenous deposit
- tertiary recovery
- tesseral
- test bead
- test boring
- tenuity
- term cash
- terminal bond
- terminal moraine
- terminal residue
- terminal speed
- termolecular