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Webster 1913 Edition

Selenonium

Selˊe-no′ni-um

,

Noun.

[

Selen

ium + sulph

onium

.]

(Chem.)

A hypothetical radical of selenium, analogous to sulphonium.

[R.]

Definition 2024

selenonium

selenonium

English

Noun

selenonium

(chemistry) The univalent H₃Se⁺cation, derived from selane.