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columnar

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columnar


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Columnar  \Co*lum"*nar\,  a.  [L.  columnaris,  fr  columna.] 
  Formed  in  columns;  having  the  form  of  a  column  or  columns; 
  like  the  shaft  of  a  column. 
 
  {Columnar  epithelium}  (Anat.),  epithelium  in  which  the  cells 
  are  prismatic  in  form  and  set  upright  on  the  surface  they 
  cover. 
 
  {Columnar  structure}  (Geol.),  a  structure  consisting  of  more 
  or  less  regular  columns,  usually  six-sided,  but  sometimes 
  with  eight  or  more  sides.  The  columns  are  often  fractured 
  transversely,  with  a  cup  joint,  showing  a  concave  surface 
  above.  This  structure  is  characteristic  of  certain  igneous 
  rocks,  as  basalt,  and  is  due  to  contraction  in  cooling. 
 
  From  WordNet  r  1.6  [wn]: 
 
  columnar 
  adj  1:  having  the  form  of  a  column;  "trees  with  columned  trunks"; 
  "columnar  forms";  "a  columnlike  tree  trunk"  [syn:  {columniform}, 
  {columnlike}] 
  2:  characterized  by  columns;  "columnar  construction" 




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