-oan

构词拆分

-ous后缀

Used to form adjectives from nouns, to denote: · (chemistry) 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.

-an后缀

Of or pertaining to; an adjectival suffix appended to various words, often nouns, to make an adjective form. (Often added to words of Latin origin, but also used with words of other origins. When a word ends in a, -n is used instead.) · One from, belonging to, relating to, or like.

词源说明

Suffixal construction from -o(us) +‎ -an.

释义（英文）

后缀 Suffix

Used to convert the name of an atom or ion to an adjective that means containing cations or anions of that atom or ion.