Wiktionary
n. (context science fiction English) device used to attract other objects.
Wikipedia
A tractor beam is a device with the ability to attract one object to another from a distance. The concept originates in fiction: the term was coined by E. E. Smith (an update of his earlier "attractor beam") in his novel Spacehounds of IPC (1931). Since the 1990s, technology and research has laboured to make it a reality, and have had some success on a microscopic level. Another method to realize tractor beams is based on the use of biaxial birefringent media. Less commonly, a similar beam that repels is called a pressor beam or repulsor beam. Gravity impulse and gravity propulsion beams are traditionally areas of research from fringe physics that coincide with the concepts of tractor and repulsor beams.
Usage examples of "tractor beam".
Even though their tractor beam generators were out of our phaser range, the coordinates they’.
Kyle will be able to retrieve most of the guide with a portable tractor beam and make his connections up there.
I'm not wishing this world on anyone else from Earth, but it appears that there will be sooner or later since you didn't find the tractor beam that brought us here.
He could not cut that tractor beam and the utmost power of his drivers could not wrest the lifeboat from its tenacious clutch.
A shaft of light withdrew with them, and she wondered if it was a tractor beam.