ylem

noun \ˈīləm\

Definition of ylem

plural

-s

  1. :  the primordial first substance from which according to some theories the elements are supposed to be formed; specifically :  a primordial gas consisting of neutrons

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Origin and Etymology of ylem

Middle English, from Middle French ilem, probably from Medieval Latin hylem, accusative of hyle matter, from Latin, from Greek hylē — more at hyle


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