nearomnidirectional
Nearomnidirectional is a term used to describe a radiation pattern or antenna characteristic that is very close to, but not exactly, omnidirectional. An omnidirectional pattern radiates or receives signals equally well in all horizontal directions, typically forming a donut shape in three dimensions. A nearomnidirectional pattern deviates slightly from this ideal.
This deviation can manifest in several ways. For instance, a nearomnidirectional antenna might have slight nulls
The term is often employed in contexts where a perfect omnidirectional pattern is difficult or impractical