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Hubble constant

Noun CEFR B2

Definitions

A number that expresses the rate of expansion of the universe; the velocity at which a distant object is receding from the Earth divided by its distance; its reciprocal determines the age of the universe.

Equivalents

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CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

Hubble diagram Hubble distance Hubble flow Hubble horizon Hubble law Hubble length

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