(meteorology) Of, relating to, or occurring in the stratosphere (“the region of the uppermost atmosphere”). / (figuratively, colloquial) Unusually or unreasonably high; astronomical.

In a stratospheric manner, or to a stratospheric degree / (meteorology) By way of or in regard to the stratosphere

(geology, obsolete) Collectively, those layers of the Earth’s crust which primarily comprise stratified deposits.

plural of stratosphere

(meteorology) A relatively rare type of clouds that occurs high in the stratosphere; polar stratospheric clouds often resemble mother-of-pearl as they shine in vivid colours, known as irisation

(meteorology) A weather phenomenon where the polar vortex breaks down, causing a sudden temperature increase in the stratosphere of 50 kelvin or more.

plural of polar stratospheric cloud

plural of sudden stratospheric warming