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Definition of Ylem
1. Noun. (cosmology) the original matter that (according to the big bang theory) existed before the formation of the chemical elements.
Definition of Ylem
1. Noun. (physics astronomy cosmology now chiefly historical) In the Big Bang theory, the hot and dense plasma of which the cosmos consisted at the time of recombination in an early stage of its expansion and cooling, when the first atoms formed and photons decoupled, the source of the cosmic background radiation. ¹
¹ Source: wiktionary.com
Definition of Ylem
1. hypothetical matter from which the elements are derived [n -S]
Lexicographical Neighbors of Ylem
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