photoionization
[ foh-toh-ahy-uh-nuh-zey-shuh n ]
/ ˌfoʊ toʊˌaɪ ə nəˈzeɪ ʃən /
noun Physics.
the phenomenon in which the absorption of electromagnetic radiation by an atom in a gas induces the atom to emit a bound electron and thereby become ionized.
Origin of photoionization
1910–15;
photo- +
ionization
Words nearby photoionization
photography,
photogravure,
photoheliograph,
photoinactivation,
photoinduced,
photoionization,
photoisomerization,
photojournalism,
photokinesis,
photolitho,
photolithograph