-ous

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-ous

1. Chemical suffix attached to the name of an element in one of its lower valencies. Compare: -ic (1).
2. Having much of.

-ous, -eous

suffix meaning an "element or compound with a valence lower than the corresponding one ending in -ic": cuprous, ferrous, hypochlorous.

-ous

1. Chemical suffix attached to the name of an element in one of its lower valencies.
Compare: -ic (1)
2. Combining form meaning having much of.
[L. -osus, full of, abounding]

-ous

suffix meaning pertaining to.