amygdala n 1: 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}, {corpus amygdaloideum}]
amygdala \a*myg"da*la\ ([.a]*m[i^]g"d[.a]*l[.a]), n.; pl. {-l[ae]} (-l[=e]). [L., an almond, fr. Gr. 'amygda`lh. See {Almond}.] 1. An almond. [Webster 1913 Suppl.] 2. (Anat.) (a) One of the tonsils of the pharynx. (b) One of the rounded prominences of the lower surface of the lateral hemispheres of the cerebellum, each side of the vallecula. [Webster 1913 Suppl.]