Definition of -on in English:

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Pronunciation: /ɒn/


Physics , Biochemistry , & Chemistry
Forming nouns:
2Denoting molecular units: codon
3Denoting substances: interferon


sense 1 originally in electron, from ion, influenced (as in sense 2) by Greek on 'being'; sense 3 is on the pattern of words such as cotton or from German -on.

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