Stratosphere



GRE

解释

GRE 红宝书

• n. 平流层, 同温层
• ［英］ n. 平流层, 同温层 ( the outer part of the air which surrounds the Earth, starting at about ten kilometers above the Earth)

Webster Collegiate

noun

• Etymology: French stratosphère, from New Latin stratum + -o- + French sphère sphere, from Latin sphaera
• Date: 1909
• 1. the part of the earth's atmosphere which extends from the top of the troposphere to about 30 miles (50 kilometers) above the surface and in which temperature increases gradually to about 32° F (0° C) and clouds rarely form
• 2. a very high or the highest region on or as if on a graded scale <construction costs in the stratosphere><the celebrity stratosphere>
• ? stratospheric adjective
• ? stratospherically adverb

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