-oansuffix

Primary stress is either attracted to the first syllable of this suffix or retained by the usual stressed syllable of the preceding element. Vowels may be reduced accordingly.

Origin: Formed within English, by derivation. Etymons: ferro- comb. form, -ous suffix, -an suffix.

Etymology: < -o (in ferro- comb. form, -ous suffix, as against ferri- comb. form, -ic suffix: see -o- connective) + -an suffix.Coined in the early 20th cent.; compare:1930 W. T. Schaller in Amer. Mineralogist 15 568 Can a uniform, clearly understandable scheme of nomenclature be adopted to express a minor and variable isomorphous replacement of an essential chemical element of a mineral by another analogous element?.. The writer has concluded that the ending ian, or oan if it is desired to indicate a lower valency, is the most satisfactory, and its consistent use is here advocated... If the chemical element has only one valency or the author does not wish to bring up the question of valency, ian should be used.

Mineralogy.

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Forming adjectives denoting substitution (in a mineral) by an element in its lower valency, as ferroan adj., manganoan adj. Cf. -ian suffix 2.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online June 2019).

单词	-oan
释义	-oansuffix Primary stress is either attracted to the first syllable of this suffix or retained by the usual stressed syllable of the preceding element. Vowels may be reduced accordingly. Origin: Formed within English, by derivation. Etymons: ferro- comb. form, -ous suffix, -an suffix. Etymology: < -o (in ferro- comb. form, -ous suffix, as against ferri- comb. form, -ic suffix: see -o- connective) + -an suffix.Coined in the early 20th cent.; compare:1930 W. T. Schaller in Amer. Mineralogist 15 568 Can a uniform, clearly understandable scheme of nomenclature be adopted to express a minor and variable isomorphous replacement of an essential chemical element of a mineral by another analogous element?.. The writer has concluded that the ending ian, or oan if it is desired to indicate a lower valency, is the most satisfactory, and its consistent use is here advocated... If the chemical element has only one valency or the author does not wish to bring up the question of valency, ian should be used. Mineralogy. Categories » Forming adjectives denoting substitution (in a mineral) by an element in its lower valency, as ferroan adj., manganoan adj. Cf. -ian suffix 2. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online June 2019). < suffix
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