reionizationn.

Brit.

/riːˌʌɪənʌɪˈzeɪʃn/, U.S.

/riˌaɪənəˈzeɪʃ(ə)n/,

/riˌaɪəˌnaɪˈzeɪʃ(ə)n/

Forms: 1900s– reionisation, 1900s– reionization.

Origin: Formed within English, by derivation. Etymons: re- prefix, ionization n.²

Etymology: < re- prefix + ionization n.² Compare slightly later reionize v.

1. Physics. The action of ionizing something for a second or further time; an instance of this.

ΚΠ

1907 Trans. Amer. Inst. Electr. Engineers 1906 25 778 There seems to be..a complete de-ionization and a very sluggish re-ionization.

1955 Proc. Royal Soc. A. 227 471 The maximum error which could be produced if the cross-sections for charge exchange and re-ionization were equal is a reduction of about 5%.

1987 Science 30 Jan. 545 The important role of charge-changing collisions (stripping, neutralization, reionization, charge inversion) of high-velocity ion beams.

2008 Physica C. 468 1989/2 We can realize mass spectroscopy for neutral particles without reionization by using superconducting detectors.

2. Astronomy. The ionization of neutral hydrogen atoms formed during recombination in the early universe (10⁸ to 10⁹ years after the Big Bang). Frequently attributive. Cf. recombination n. 2a.

ΚΠ

1975 Proc. Amer. Philos. Soc. 119 342/1 The origin of irregularities which might yield anisotropies includes..radiation scattering after secondary heating and re-ionization.

1998 Guardian (Nexis) 15 Aug. 20 Recombination. Blackbody radiation. Local contraction. Large-scale structure formation. Reionisation?

2006 J. Kanipe Chasing Hubble's Shadows (2007) ii. 35 Reionization..is believed by most astronomers to have begun in earnest around 300 to 400 million years after the big bang.

This is a new entry (OED Third Edition, March 2010; most recently modified version published online March 2022).

单词	reionization
释义	reionizationn. Brit. /riːˌʌɪənʌɪˈzeɪʃn/, U.S. /riˌaɪənəˈzeɪʃ(ə)n/, /riˌaɪəˌnaɪˈzeɪʃ(ə)n/ Forms: 1900s– reionisation, 1900s– reionization. Origin: Formed within English, by derivation. Etymons: re- prefix, ionization n.² Etymology: < re- prefix + ionization n.² Compare slightly later reionize v. 1. Physics. The action of ionizing something for a second or further time; an instance of this. ΚΠ 1907 Trans. Amer. Inst. Electr. Engineers 1906 25 778 There seems to be..a complete de-ionization and a very sluggish re-ionization. 1955 Proc. Royal Soc. A. 227 471 The maximum error which could be produced if the cross-sections for charge exchange and re-ionization were equal is a reduction of about 5%. 1987 Science 30 Jan. 545 The important role of charge-changing collisions (stripping, neutralization, reionization, charge inversion) of high-velocity ion beams. 2008 Physica C. 468 1989/2 We can realize mass spectroscopy for neutral particles without reionization by using superconducting detectors. 2. Astronomy. The ionization of neutral hydrogen atoms formed during recombination in the early universe (10⁸ to 10⁹ years after the Big Bang). Frequently attributive. Cf. recombination n. 2a. ΚΠ 1975 Proc. Amer. Philos. Soc. 119 342/1 The origin of irregularities which might yield anisotropies includes..radiation scattering after secondary heating and re-ionization. 1998 Guardian (Nexis) 15 Aug. 20 Recombination. Blackbody radiation. Local contraction. Large-scale structure formation. Reionisation? 2006 J. Kanipe Chasing Hubble's Shadows (2007) ii. 35 Reionization..is believed by most astronomers to have begun in earnest around 300 to 400 million years after the big bang. This is a new entry (OED Third Edition, March 2010; most recently modified version published online March 2022). < n.1907
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