substratosphere


Also found in: Encyclopedia.

substratosphere

(ˈsʌbˌstrætəsfɪə)
n
the region of the atmosphere which is below 15 km above earth (the stratosphere) and which is over 3 and a half miles above earth
References in periodicals archive ?
Early in the battle for the town, a gamble paid off when the defenders fell back so that a carefully timed deluge of high explosives from B-52s, invisible in the substratosphere, could catch the enemy as he moved forward.
Photographs leading to this finding were taken from an airplane in the substratosphere off the coast of Peru during the eclipse of last June 8.
He used the jet streams in the substratosphere to help fly the plane, which had a nominal top speed of 190 mph, at speeds of up to 340 mph.