steady-state theory

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Definitions of steady-state theory words

noun steady-state theory a cosmological theory postulating that the universe exists throughout time in a steady state such that the average density of matter does not vary with distance or time. Matter is continuously created in the space left by the receding stars and galaxies of the expanding universe 0
noun steady-state theory a theory of cosmology, no longer favored, holding that new matter is continuously being created, thus keeping the density of the expanding universe constant 0

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A common word. It’s meaning is known to most children of preschool age. About 99% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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