Source : WordNet®

corpus amygdaloideum
     n : an almond-shaped neural structure in the anterior part of
         the temporal lobe of the cerebrum; intimately connected
         with the hypothalamus and the hippocampus and the
         cingulate gyrus; as part of the limbic system it plays an
         important role in motivation and emotional behavior [syn:
          {amygdala}, {amygdaloid nucleus}]