aminoxides

https://doi.org/10.1351/goldbook.A00284
The anion $\ce{H2N–O^{−}}$, aminoxide and its $\ce{N}$ hydrocarbyl derivatives $\ce{R2N–O^{−}}$; formally derived from hydroxylamines, $\ce{R2N–OH}$, by removing a hydron from the hydroxy group, e.g. $\ce{(CH3)2N–O^{−}}$ dimethylaminoxide.
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1317 [Terms] [Paper]
See also:
PAC, 1993, 65, 1357. (Revised nomenclature for radicals, ions, radical ions and related species (IUPAC Recommendations 1993)) on page 1357 [Terms] [Paper]