biauriculate heart

English Thesaurus

1. a heart (as of mammals and birds and reptiles) having two auricles (noun.body)

hypernym	:	heart, pump, ticker,
definition	:	the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body (noun.body)

domain category	:	mammal, mammalian,
definition	:	any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk (noun.animal)