For example, 63 Cu (29 protons and 34 neutrons) has a mass number of 63 and an isotopic mass in its nuclear ground state is 62.91367 u. There are two reasons for the difference between mass number and isotopic mass, known as the mass defect:
The Electra complex is an ambiguous psychiatric concept which attempts to explain the maturation of the human female. It is said to be the female counterpart to the Oedipus complex in males.
inferiority complex. n. A persistent sense of inadequacy or the tendency to diminish oneself, sometimes resulting in excessively aggressive behavior through overcompensation.trial complex the P wave of the electrocardiogram, representing electrical activity of the atria. See also ventricular complex. castration complex in psychoanalytic theory, unconscious thoughts and motives stemming from fear of loss of the genitals as punishment for forbidden sexual desires.