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atrium

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atrium


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Atonement  \A*tone"ment\,  n. 
 
  {Day  of  Atonement}  (Jewish  Antiq.),  the  only  fast  day  of  the 
  Mosaic  ritual,  celebrated  on  the  tenth  day  of  the  seventh 
  month  (Tisri),  according  to  the  rites  described  in 
  Leviticus  xvi.  Atrium  \A"tri*um\,  n.  (Anat.) 
  A  cavity,  entrance,  or  passage;  as  the  atrium,  or  atrial 
  cavity,  in  the  body  wall  of  the  amphioxus;  an  atrium  of  the 
  infundibula  of  the  lungs,  etc 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Atrium  \A"tri*um\,  n.;  pl  {Atria}.  [L.,  the  fore  court  of  a 
  Roman  house.] 
  1.  (Arch.) 
  a  A  square  hall  lighted  from  above,  into  which  rooms 
  open  at  one  or  more  levels. 
  b  An  open  court  with  a  porch  or  gallery  around  three  or 
  more  sides;  especially  at  the  entrance  of  a  basilica 
  or  other  church.  The  name  was  extended  in  the  Middle 
  Ages  to  the  open  churchyard  or  cemetery. 
 
  2.  (Anat.)  The  main  part  of  either  auricle  of  the  heart  as 
  distinct  from  the  auricular  appendix.  Also  the  whole 
  articular  portion  of  the  heart. 
 
  3.  (Zo["o]l.)  A  cavity  in  ascidians  into  which  the  intestine 
  and  generative  ducts  open  and  which  also  receives  the 
  water  from  the  gills.  See  {Ascidioidea}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  atrium 
  n  1:  any  chamber  that  is  connected  to  other  chambers  or 
  passageways  (especially  one  of  the  two  upper  chambers  of 
  the  heart) 
  2:  the  central  area  in  a  building;  open  to  the  sky 




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