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megastructure

American  
[meg-uh-struhk-cher] / ˈmɛg əˌstrʌk tʃər /

noun

  1. 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.

  2. a very large, complex organization.


Etymology

Origin of megastructure

First recorded in 1960–65; mega- + structure

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.

See Examples For:

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

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