structure,
construction a thing constructed; a complex entity constructed of many parts; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons"
stadium -
An ancient Greek race course, especially, the Olympic course for foot races.
stadium -
A Greek measure of length, being the chief one used for itinerary distances, also adopted by the Romans for nautical and astronomical measurements, equal to 600 Greek or 625 Roman feet, or 125 Roman paces, or to 606 feet, 9 inches.
stadium -
A kind of telemeter for measuring the distance of an object of known dimensions, by observing the angle it subtends.
stadium -
In surveying, a graduated rod used to measure the distance of the place where it stands from an instrument having a telescope, by observing the number of the graduations of the rod that are seen between certain parallel wires stadia wires in the field of view of the telescope.
Wikipedia
A modern stadium (plural stadiums or stadia) is a place or venue for (mostly) outdoor sports, concerts, or other events and consists of a field or stage either partly or completely surrounded by a structure designed to allow spectators to stand or sit and view the event. Pausanias noted that for about half a century the only event at the ancient Greek Olympic festival was the race that comprised one length of the stade at Olympia, where the word stadium is originally derived from.
OmegaWiki Dictionary
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stadium A large structure for open-air sports or entertainments.