electron spin resonance(n = noun.act) electron paramagnetic resonance, esr - microwave spectroscopy in which there is resonant absorption of radiation by a paramagnet;
is a kind of microwave spectroscopy

electron, electron accelerator, electron beam, electron emission, electron gun, electron lens, electron microscope, electron microscopic, electron microscopy, electron multiplier, electron optics, electron orbit, electron paramagnetic resonance, electron radiation, electron shell, electron tube, electron volt, free electron, functional magnetic resonance imaging, magnetic resonance, magnetic resonance imaging, nuclear magnetic resonance, nuclear resonance, proton magnetic resonance, resonance, spin, spin around, spin doctor, spin drier, spin dryer, spin off, spin out, spin the bottle, spin the plate, spin the platter, valence electron