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atrium
 
Noun atrium has 2 senses
  1. atrium - any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)
    --1 is a kind of     chamber
    --1 has particulars: atrium cordis, atrium of the heart
  2. atrium - the central area in a building; open to the sky
    --2 is a kind of     court, courtyard
atrioventricular valve atrip atriplex atriplex hortensis atriplex hymenelytra atriplex lentiformis atriplex mexicana atrition atrium atrium cordis atrium dextrum atrium of the heart atrium sinistrum atrocious atrocious atrociously atrociousness

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