To pronounce "photoionization", say PHOT-oion-iz-at-ion — 5 syllables. Tap play below to hear it in four English accents, or practice it syllable by syllable.
photoionization
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5
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15
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PHOT-oion-iz-at-ion
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"photoionization" has 5 syllables: phot-oion-iz-at-ion.
noun
"Photoionization" has 5 syllables: phot · oion · iz · at · ion.
Photoionization: The ejection of electrons from an atom or other species following the absorption of photons.
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