subterrenean
/ˌsʌbtəˈriːnɪən/adjective
= subterranean.
Origin
Mid 17th century; earliest use found in James Howell (?1594–1666), historian and political writer. Alteration of subterranean, after subterrene.
- air-to-ground
- air tool
- air-to-surface
- air traffic
- air traffic control
- air traffic controller
- Air Training Corps
- air transport
- air-transportability
- air-transportable
- Air Transport Auxiliary
- air trap
- air travel
- air truck
- air trunk
- air tube
- air tunnel
- air turbine
- air twist
- air twisted
- air umbrella
- air vent
- air vessel
- air vice-marshal
- airview