reionization
noun
- process that caused the matter in the universe to reionize early in the history of the universe
Wiktionary
name
Etymology: From reionization.
- The epoch of reionization of the Universe, where matter decoupled from energy, and space became transparent to radiation. One of the Ages of the Universe. The cosmic era when ultraviolet radiation of the first (Population III) stars and quasars ionized neutral hydrogen, ending the Cosmic Dark Age(s).
noun
Etymology: Etymology tree Proto-Italic *wre- Latin re-der. Old French re-bor. Middle English re- English re- Proto-Indo-European *h₁ey- Proto-Indo-European *h₁éyti Proto-Hellenic *éimi Ancient Greek εἶμι (eîmi)der. English ion Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō)bor. Late Latin -izōder. Middle French -iserbor. Middle English -isen English -ize English ionize Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ationbor. Middle English -acioun English -ation English ionization English reionization From re- + ionization.
- The act or process of reionizing.
- The process by which the plasma of electrons and protons is produced after the Big Bang, when stars and galaxies ionized neutral hydrogen, or the era in which this occurs.