photoionn.

Brit.

/ˈfəʊtəʊʌɪən/, U.S.

/ˈfoʊdoʊˌaɪən/

Origin: Formed within English, by compounding. Etymons: photo- comb. form, ion n.

Etymology: < photo- comb. form + ion n., after photoionization n.

Physics.

An ion resulting from photoionization.

ΚΠ

1926 Science 16 Apr. 405/1 The photo-ionization produced by the radiation from a thermionic discharge was measured by the effect of the photo-ions on the space charge.

1970 Proc. Royal Soc. A. 316 542 Concentrations were measured from the photo-ion currents produced by a krypton resonance lamp.

1998 Nature 23 July 351/1 The screening method described here exploits tunable lasers for the selective photoionization of product molecules..followed by the detection of the resulting photoions or photoelectrons.

This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	photoion
释义	photoionn. Brit. /ˈfəʊtəʊʌɪən/, U.S. /ˈfoʊdoʊˌaɪən/ Origin: Formed within English, by compounding. Etymons: photo- comb. form, ion n. Etymology: < photo- comb. form + ion n., after photoionization n. Physics. An ion resulting from photoionization. ΚΠ 1926 Science 16 Apr. 405/1 The photo-ionization produced by the radiation from a thermionic discharge was measured by the effect of the photo-ions on the space charge. 1970 Proc. Royal Soc. A. 316 542 Concentrations were measured from the photo-ion currents produced by a krypton resonance lamp. 1998 Nature 23 July 351/1 The screening method described here exploits tunable lasers for the selective photoionization of product molecules..followed by the detection of the resulting photoions or photoelectrons. This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1926
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