double octave

Music: The interval of a fifteenth. double pedal point, s. Music: A portion of a fugue or melody in which two notes are long sustained, generally the tonic and dominant. ( Stainer & Barrett .) [SUSTAINED NOTE.] double pedro, s. [PEDRO, s.] double personality, 8. 1. Pathology: An abnormal condition in which the patient imagines himself to be two distinct personalities, the one continually alternating with the other; it usually is a precursor of insanity. 2. Dual personality (q. v.).