1. A dome-shaped protective enclosure for a radar antenna, made from materials that do not interfere with the transmission and reception of radio waves.
2. A blend of radar and dome.

• Radar: The electronic equipment that transmits and receives high-frequency radio waves to detect, locate, and track distant objects; an acronym composed of radio detection and ranging.
• Dome: A hemispherical or convex structure, that slopes in all directions from a central point; especially, a building.