| electron spin resonance | <physics> A spectrometric method, based on measurement of electron spins and magnetic moments, for detecting and estimating free radicals in reactions and in biological systems. Synonym: electron paramagnetic resonance. (05 Mar 2000) |
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| electron spin resonance spectroscopy | <radiology> A technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons. The spectra are useful for detection and identification, for determination of electron structure, for study of interactions between molecules, and for measurement of nuclear spins and moments. electron nuclear double resonance (endor) spectroscopy is a variant of the technique which can give enhanced resolution. Electron spin resonance analysis can now be used in vivo, including imaging applications. (12 Dec 1998) |
| tympanitic resonance | 1. <clinical sign> A flatulent distention of the belly; tympanites. 2. Hence, inflation; conceit; bombast; turgidness. "Thine 's a tympany of sense." "A plethoric a tautologic tympany of sentence." (De Quincey) Origin: Gr, fr. A kettledrum. See Tympanites. (28 Oct 1998) |