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Käännös:
ylem (suomeksi)
- Sana perusmuodossa: yle Määritelmät:
- (lb, en, astronomy, cosmology, physics, now, _, chiefly, historical) In the Big Bang theory, the hot and dense plasma which made up the cosmos at the time of recombination in an early stage of its expansion and cooling, when the first atoms formed and photons decoupled. The ylem is regarded as the source of the cosmic microwave background. (defdate, from 1948.)