1) Nondirectional 
Omnidirectional refers to the notion of existing in every direction. Omnidirectional devices include: ...
Capable of transmitting or receiving signals in all directions, as an antenna.
Bar codes which can be read in any orientation in relation to the scanner
See Polar Pattern. Will pick up sound from all angles equally. An omnidirectional polar pattern should adhere very closely to that of a circle / sphere. There are also Half
[adj] - not directional
adjective not directional; `omnidirectional antenna`
A type of microphone which takes in sound coming from all directions.
Literally, from all directions. In audio, microphones are said to be omnidirectional if they can det