#dual environment

• Amphibious — Having an amphibious character, based on mixed land and water operations, or relating to organisms with a dual way of life. In military terminology, it defines tactical maneuvers, landings, troops, or special vehicles structurally designed to launch attacks from the sea directly onto enemy land territory.
• Amphibious — Capable of living, functioning, or moving both on land and in water; relating to organisms of the amphibian class or to vehicles adapted to dual environments. As a masculine noun, it represents an amphibian animal or a military vehicle, tank, motor vehicle, or seaplane structurally equipped with watertight propulsion and flotation systems.