megastructure
Americannoun
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a very large, usually high-rise building or a complex of such buildings used for many purposes, as for apartments, offices, stores, theaters, and athletic facilities.
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a very large, complex organization.
Etymology
Origin of megastructure
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In effect, the megastructure would absorb starlight, use that energy for whatever purpose its builders intended, and then radiate the excess as infrared heat.
From Science Daily ● Jul. 10, 2026
Another possible way to find a megastructure would be to measure its dimming effect on a star.
From Salon ● Nov. 2, 2022
As I prepared to leave China in 2008, the Soviet-era airport had given way to a glittering megastructure designed by Norman Foster.
From BBC ● Oct. 23, 2022
This star gained fame when a far-fetched hypothesis that this dimming could be the first signs of an alien megastructure took root.
From Scientific American ● Apr. 14, 2022
In this case, using the manufacturing resources it has developed to build a defensive megastructure — one that will eventually grow into a broader home for humanity.
From Nature ● Nov. 5, 2019
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.