collimated

Adjective

 * 1)  Composed of rays that are parallel, thus having a wavefront that is planar.
 * 2) * 2008 May, A. M. Soderberg, et al., An extremely luminous X-ray outburst at the birth of a supernova, Accepted draft, page 3,
 * Wolf-Rayet stars are also argued9 to give rise to gamma-ray bursts, a related but rare class of explosions characterized by highly-collimated relativistic jets.
 * Wolf-Rayet stars are also argued9 to give rise to gamma-ray bursts, a related but rare class of explosions characterized by highly-collimated relativistic jets.