Hexi-prismatic field
The hexi-prismatic field was an energy field that reacted directionally to sporocystian activity, like a compass.

In 2372,  crew members placed the remains of the  into a hexi-prismatic field, so that if the remains responded to the sporocystian energy of another Nacene, they could locate the source. ()

de:Hexi-prismatisches Feld
Energy