stratosphere C2 Topic:Space, Position & Direction US /ˈstrætəsˌfɪr/ See IPA manual Freq #32031 Meanings 1 noun The layer of the atmosphere above the troposphere, where the ozone layer absorbs the sun's ultraviolet rays. Passenger jets often fly in the lower stratosphere to avoid bad weather. Thesaurus Word family Forms stratospheres Derived forms substratosphere Etymology AI details From French stratosphère, a word coined by its discoverer, meteorologist Léon Teisserenc de Bort. From strato- + -sphere. Topics Space, Position & Direction External links Cambridge Dictionary Wiktionary Google Images # stratosphere **Type:** Word **Level:** C2 **Part of speech:** noun **IPA (US):** /ˈstrætəsˌfɪr/ **Frequency rank:** 32031 ## Meanings 1. The layer of the atmosphere above the troposphere, where the ozone layer absorbs the sun's ultraviolet rays. ## Examples - Passenger jets often fly in the lower stratosphere to avoid bad weather. ## Derived Forms - substratosphere ## Etymology From French stratosphère, a word coined by its discoverer, meteorologist Léon Teisserenc de Bort. From strato- + -sphere. ## AI Etymology Stratosphere is from French stratosphère, a word coined by its discoverer, meteorologist Léon Teisserenc de Bort. From strato- + -sphere. In present-day use, it means the layer of the atmosphere above the troposphere, where the ozone layer absorbs the sun's ultraviolet rays. Derived formations include substratosphere. ## Topics - Space, Position & Direction markdown