MeSH definition : Molecules which contain an atom or a group of atoms exhibiting an unpaired electron
spin that can be detected by electron spin resonance spectroscopy and can be bonded
to another molecule. (McGraw-Hill Dictionary of Chemical and Technical Terms, 4th
ed);
Molecules which contain an atom or a group of atoms exhibiting an unpaired electron
spin that can be detected by electron spin resonance spectroscopy and can be bonded
to another molecule. (McGraw-Hill Dictionary of Chemical and Technical Terms, 4th
ed)