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Third-degree atrioventricular block

medical condition in which the impulse generated in the sinoatrial node (SA node) in the atrium of the heart does not propagate to the ventricles

Pronunciation
/θəːd - dɪˈɡriː ˌeɪtrɪəʊvɛnˈtrɪkjʊlə blɒk/
/θərd - dəˈɡri ˌeɪtrioʊvɛnˈtrɪkjələr blɑk/