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troposphere

Pronunciation: /ˈtrɒpə(ʊ)sfɪə, ˈtrəʊp-/

Definition of troposphere

noun

  • the lowest region of the atmosphere, extending from the earth’s surface to a height of about 6-10 km (the lower boundary of the stratosphere).

Derivatives

tropospheric

Pronunciation: /-ˈsfɛrɪk/

adjective

Origin:

early 20th century: from Greek tropos 'turning' + sphere

troposphere in other Oxford dictionaries

Definition of troposphere in the US English dictionary

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