Definition of "omnidirectional" in English

adjective

1. In every direction, especially of a radio system capable of transmitting or receiving signals in all directions, or of a microphone capable of detecting sound from all directions.

   • An omnidirectional radio beacon.

2. (physics, electrical engineering) Having a ring-shaped radiation pattern, with equal radiation in all azimuthal directions.

3. (rare) Of such an attack or effect that encompasses all directions.