-onium

Chemistry.

1. a suffix used in the names of complex cations.

   oxonium.

Word History and Origins

Origin of -onium¹

Extracted from ammonium

Example Sentences

This is a situation which agrees with no other city in all Egypt, except that which was the Onium of the later Jews.

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This was also called Onium, and Hanes, the I�nisus of Herodotus.

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