nuclear Overhauser enhancement spectroscopy one-dimensional nuclear Overhauser enhancement spectroscopy CHMO:0000724 1D nuclear Overhauser enhancement spectroscopy 1D-nOesy A type of homonuclear NMR spectroscopy where only one frequency dimension is employed, based on the nuclear Overhauser enhancement effect in which correlations are seen between nuclei that are spatially proximate within a molecule (<=6 angstrom apart). 1D-NOESY 1D NOESY 1D nOesy