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“superluminal”
superluminal (adjective) (not comparable)
1. In astronomy, an energetic knot of gas in a galactic jet (large-scale aggregates of stars, gas, and dust that constitute the universe) which has a high velocity and is going in a direction such that it gives the appearance of having faster-than-light movements.
2. Pertaining to speeds faster than that of shining machines: As a child, Priscilla was always puzzled that she could see jet planes in the sky long before she could hear the roaring sounds of their motors; later, she learned that the loud noises were not superluminal sounds because they were never able to be heard before they could be seen.
2. Pertaining to speeds faster than that of shining machines: As a child, Priscilla was always puzzled that she could see jet planes in the sky long before she could hear the roaring sounds of their motors; later, she learned that the loud noises were not superluminal sounds because they were never able to be heard before they could be seen.
This entry is located in the following unit:
lumen-, lumin-, lum-
(page 5)
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“superluminal”
Referring to an object whose apparent speed exceeds the speed of light: In the fantasy story, Jane read about a superluminal being that could travel with such a speed that it could be anywhere in space in less than a second.
This entry is located in the following unit:
Astronomy and related astronomical terms
(page 25)