What is the meaning of -ous?
Used to form adjectives from nouns, to denote:
- possession of
possession of
presence of a quality in any degree (typically abundance of)
relation or pertinence to
Used in chemical nomenclature to name chemical compounds in which a specified chemical element has a lower oxidation number than in the equivalent compound whose name ends in the suffix -ic. For example sulphuric acid (H2SO4) has more oxygen atoms per molecule than sulphurous acid (H2SO3). See Inorganic nomenclature.
Forms adjectives from nouns or verbs, especially if of Romance origin.
Alternative form of -us
Source: wiktionary.org
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