ylem

noun
\ˈīləm\
plural -s

Definition of ylem 

: 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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History and Etymology for ylem

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

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Dictionary Entries near ylem

-yl

ylang-ylang

yld

ylem

-ylene

Y level

-ylidene

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