(in the Big Bang theory) the primordial matter of the universe, originally conceived as composed of neutrons at high temperature and density.
1940s: from late Latin hylem (accusative) ‘matter’.
“You could say we’re all just made of ylem!”
Introductory study, especially of the literary and external history of the Bible prior to exegesis.
Mid 19th century: plural of isagogic, via Latin from Greek eisagōgikos, from eisagōgē ‘introduction’, from eis ‘into’ + agein ‘to lead’.