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alveolus

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alveolus


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Alveolus  \Al*ve"o*lus\  ([a^]l*v[=e]"[-o]*l[u^]s),  n.;  pl 
  {Alveoli}  (-l[imac]).  [L.,  a  small  hollow  or  cavity,  dim.  of 
  alveus:  cf  F.  alv['e]ole.  See  {Alveary}.] 
  1.  A  cell  in  a  honeycomb. 
 
  2.  (Zo["o]l.)  A  small  cavity  in  a  coral,  shell,  or  fossil 
 
  3.  (Anat.)  A  small  depression,  sac,  or  vesicle,  as  the  socket 
  of  a  tooth,  the  air  cells  of  the  lungs,  the  ultimate 
  saccules  of  glands,  etc 
 
  From  WordNet  r  1.6  [wn]: 
 
  alveolus 
  n  1:  a  tiny  sac  for  holding  air  in  the  lungs;  formed  by  the 
  terminal  dilation  of  tiny  air  passageways  [syn:  {air  sac}, 
  {air  cell}] 
  2:  a  bony  socket  in  the  alveolar  ridge  that  holds  a  tooth  [syn: 
  {tooth  socket}] 




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