Definition of ylem in English:

ylem

Line breaks: ylem
Pronunciation: /ˈiːlɛm
 
/

noun

[mass noun] Astronomy
(In the Big Bang theory) the primordial matter of the universe, originally conceived as composed of neutrons at high temperature and density.
More example sentences
  • We had to use primordial ylem.

Origin

1940s: from late Latin hylem (accusative) 'matter'.

Definition of ylem in:

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