ternary addition - timber-work
- ternary addition
- ternary arithmetic
- ternary division
- ternary electrolyte
- ternary multiplication
- ternary system
- terne
- terne plate
- terning
- terpenic
- terpenic acid
- terrain
- terrain configuration
- terrain echo
- terrain feature
- terrain line
- terrain-avoidance system
- terrain-clearance indicator
- terrain-following system
- terrain-recognition
- terrain-recognition system
- terramycin
- terrestrial currents
- terrestrial deposits
- terrestrial equator
- terrestrial globe
- terrestrial gravitational field
- terrestrial gravity
- terrestrial heat
- terrestrial horizon
- terrestrial magnetic field
- terrestrial magnetism
- terrestrial meridian
- terrestrial physics
- terrestrial planet
- terrestrial refraction
- terrestrial survey
- terrestrial telescope
- terrigenous
- tertiary