word
cosmic microwave background
KOZ-mik MY-kroh-wayv BAK-grownd
ˈkɒzmɪk ˈmaɪkrəʊweɪv ˈbækɡraʊndListen
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Syllable breakdown
cosmicmicrowavebackground
Dictionary meaning
The thermal radiation left over from the early universe, providing evidence for the Big Bang.
Examples
- Mapping the cosmic microwave background revealed the structure of the early universe.
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