-onium

Word Origin

Chemistry.

a suffix used in the names of complex cations:

oxonium.

Origin

extracted from ammonium

Related Words

charmonium
diazonium
oxonium compound

-onium
noun suffix

ETYMOLOGY New Latin, from ammonium

: an ion having a positive charge
hydronium
— compare -ium 1b

-onium, suffix[abstracted from ammonium.]1. Chem. Used in forming the names of complex cations that contain a more or less electronegative central atom, usu. bonded to a number of protons (or to other species that are regarded as substituents), as arsonium, carbonium, hydrazonium, nitronium, oxonium, phosphonium, tetrachlorophosphonium, etc.1971Nomencl. Inorg. Chem. (I.U.P.A.C.) (ed. 2) 20 Names for polyatomic cations derived by addition of more protons than required to give a neutral unit to monatomic anions, are formed by adding the ending -onium to the root name of the anion element.2. Particle Physics. [Abstracted from positronium.] Used in forming the names of bound states of a particle and its antiparticle, as charmonium, toponium.

-onium /əʊnɪəm/ suffix.

ORIGIN: Extracted from ammonium.

1.Chemistry. Forming names of complex cations of a more or less electronegative element, often bonded to protons, as carbonium, diazonium, etc.

2.Physics. Forming names of bound states of a particle and its antiparticle, as charmonium.

-o·ni·um
noun suffix
(-s)
Etymology: International Scientific Vocabulary, from New Latin ammonium
: an ion having a positive charge — in names of complex cations containing hydrogen or one or more organic radicals coordinated to a central atom
< oxonium >
< phosphonium >
< sulfonium >
— compare -ium 1b

词汇	-onium
词根词缀	Dictionary.com MWCD OED SOED Webster Wiktionary -onium Word Origin Chemistry. 1 a suffix used in the names of complex cations: oxonium. Origin extracted from ammonium Related Words charmonium diazonium oxonium compound -onium noun suffix ETYMOLOGY New Latin, from ammonium : an ion having a positive charge hydronium — compare -ium 1b -onium, suffix[abstracted from ammonium.]1. Chem. Used in forming the names of complex cations that contain a more or less electronegative central atom, usu. bonded to a number of protons (or to other species that are regarded as substituents), as arsonium, carbonium, hydrazonium, nitronium, oxonium, phosphonium, tetrachlorophosphonium, etc.1971Nomencl. Inorg. Chem. (I.U.P.A.C.) (ed. 2) 20 Names for polyatomic cations derived by addition of more protons than required to give a neutral unit to monatomic anions, are formed by adding the ending -onium to the root name of the anion element.2. Particle Physics. [Abstracted from positronium.] Used in forming the names of bound states of a particle and its antiparticle, as charmonium, toponium. -onium /əʊnɪəm/ suffix. ORIGIN: Extracted from ammonium. 1.Chemistry. Forming names of complex cations of a more or less electronegative element, often bonded to protons, as carbonium, diazonium, etc. 2.Physics. Forming names of bound states of a particle and its antiparticle, as charmonium. -o·ni·um noun suffix (-s) Etymology: International Scientific Vocabulary, from New Latin ammonium : an ion having a positive charge — in names of complex cations containing hydrogen or one or more organic radicals coordinated to a central atom < oxonium > < phosphonium > < sulfonium > — compare -ium 1b -onium Suffix pl. -onia or -oniums physics desginating an onium particle Etymology From onium
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-onium

Related Words

-onium

Suffix pl. -onia or -oniums

Etymology

Suffix
pl. -onia or -oniums