longitudinal dissociation

lon·gi·tu·di·nal dis·so·ci·a·tion

dissociation between parallel chambers of the heart, as between one atrium and the other or between one ventricle and the other, in contrast to dissociation between atria and ventricles.

lon·gi·tu·di·nal dis·so·ci·a·tion

(lon'ji-tū'di-năl di-sō'sē-ā'shŭn) Dissociation between parallel chambers of the heart, as between one atrium and the other or between one ventricle and the other, in contrast to dissociation between atria and ventricles.