collimated

Etymology

verb

1. simple past and past participle of collimate

adj

1. (physics, of a light beam) Composed of rays that are parallel, thus having a wavefront that is planar.
   Low-mass objects have much more collimated flows than high mass sources. 1984, Charles J. Lada, “Energetic Outflows, Winds and Jets around Young Stars”, in M. F. Kessler, J. P. Phillips, editors, Galactic and Extragalactic Infrared Spectroscopy, page 266
   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.
   Although the most collimated outflows look very much jet-like at the highest velocities, their behavior is much more classical at lower speeds. 2011, R. Bachiller, M. Tafalla, “Bipolar Molecular Outflows”, in Charles J. Lada, N.D. Kylafis, editors, The Origin of Stars and Planetary Systems, page 240
   Closing the aperture results in more collimated light, as only light traveling in the right direction can make it through the smaller opening. 2012, Kurt Demaagd, Anthony Oliver, Nathan Oostendorp, Katherine Scott, Practical Computer Vision with SimpleCV: The Simple Way to Make Technology See, page 222