How to pronounce thermosphere
American English pronunciation
THUR-muh-sfeer
- IPA
- /ˈθɝməˌsfɪɹ/
- Syllables
- THUR · muh · sfeer (3 syllables, stress on the 1st)
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What thermosphere means
The very hot, thin layer of air far above Earth
In a sentence: Some satellites circle Earth inside the thermosphere.
Where it comes from: It's thermo-, a Greek piece meaning heat, plus -sphere, a round layer.
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