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
Word origin
[1960–65; mega- + structure]This word is first recorded in the period 1960–65. Other words that entered Englishat around the same time include: bicycle kick, buyback, go-go, power play, tag questionmega- is a combining form with the meanings “large, great, grand,” “abnormally large,”used in the formation of compound words; it is also the initial element in units ofmeasure that are equal to one million of the units denoted by the base word (megahertz). Other words that use the affix mega- include: megadeath, megakaryocyte, megalith, megaphone, megaspore
Examples of 'megastructure' in a sentence
megastructure
That megastructure may govern their careers, but they don't love or understand it.