biauriculate heart

Noun
  1. A heart (as of mammals and birds and reptiles) having two auricles (synset 105396653)
    referred to in: mammal, mammalian - 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
    is a type of: heart, pump, ticker - the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body

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