n.1.(Chem.) A hypothetical radical of selenium, analogous to sulphonium.
References in periodicals archive ?
They then used their method in a study of several organoselenium compounds, including selenonium compounds, and reported various degrees of metabolism to TMSe by the different compounds.
The metabolism of selenomethionine, Se-methylselenocysteine, their selenonium derivatives, and trimethylselenonium in the rat.