Countable Nouns That Start with ION

Find 14 valid English countable nouns starting with ION, including Ion, Ionization, Ionosphere, Ionizer, Ionicity, Iontophoresis and Ionone. Check definitions and usage below, or visit our noun grammar guide to review singular and plural count rules.

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Starts with ION
1 words
ion
Starts with IONI
4 words
ionization
ionizer
ionicity
ionics
Starts with IONO
8 words
ionosphere
ionone
ionophore
ionomer
ionopause
ionophoresis
ionosonde
ionogen
Starts with IONT
1 words
iontophoresis

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