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-ium

Syllabification: -ium

Definition of -ium in English:

suffix

1Forming nouns adopted unchanged from Latin (such as alluvium) or based on Latin or Greek words (such as euphonium).
2 (also -um) Forming names of metallic elements: cadmium magnesium
3Denoting a region of the body: pericardium
4Denoting a biological structure: mycelium

Origin

modern Latin in sense 2, sense 3, and sense 4 via Latin from Greek -ion.

Definition of -ium in:

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Word of the day prepotent
Pronunciation: ˌprēˈpōtnt
adjective
greater than others in power or influence