Wormhole
... Stargates are access points (like wormholes) in the time space fields... open wormholes allow easy connection points between the human races in this 3D density and the multitude of races that exist in other dimensions.
Reference
Also:
Inner-Space pathways.
Reference
Suppression of Inner Space by Noel Huntley, Ph. D. (June 2005)
Term first found in HGS Manual: Page 88