<unk>  is a sign where, on palpation of the pulse, a double peak in the aortic waveform is observed with each cardiac cycle.
Bisferious means striking twice. Therefore,<unk>  is a type of aortic waveform which has two systolic peaks separated by distinct mid-systolic dip
Pulsus bisferiens
Binaural beats
Pulsus parvus et tardus
Cornea verticillata
Pulsus bigeminus
Precordial thump
Paradoxical septal motion
Jugular venous distention