Definition of "futurama"

Today we are apt to think of a fair as a mileless potpourri of trylons and flood-lighted futuramas, but in the yesterdays of our greatgrandfathers, a fair meant a cattle show.

1940, Edward Roberts Barnsley, Agricultural Societies of Bucks County, PA‎, page 1

Under these circumstances, it is no surprise that the public lately has been treated in word and print to futuramas of air commerce showing winged leviathans, flying box-cars, trains of mammoth gliders and immense helicopters filling the heavens.

1942, Air Transportation, I-III, page 29/2

The great New York World’s Fair of my childhood, erected on top of the garbage dumps that had filled the swamps of old, making marvelous futuramas out of the midden of the present.

1980, Jascha Frederick Kessler, New Lugano Review, III, page 32

The book of Revelation, which describes [John’s glimpse of eternity], has to be the greatest futurama of all time.

2006, Roger Carswell, Where Is God in a Messed-up World?‎, page 61

With its emphasis on technology, its ebullient optimism, and boundless claims for design’s responsibility and power, MC is a cross between a world’s fair, a futurama, and a technology expo.

2007, Robert Levit, Evonne Levy, “Design Will Save the World! On Bruce Mau’s Massive Change and the Mediatization of Culture”, in William S. Saunders, editor, The New Architectural Pragmatism, page 162