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epidermis

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epidermis


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Periostracum  \Per`i*os"tra*cum\,  n.;  pl  {Periostraca}.  [NL., 
  fr  Gr  ?  around  +  ?  shell  of  a  testacean.]  (Zo["o]l.) 
  A  chitinous  membrane  covering  the  exterior  of  many  shells;  -- 
  called  also  {epidermis}. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Epidermis  \Ep`i*der"mis\,  n.  [L.,  fr  Gr  ?;  ?  over  +  ?  skin, 
  fr  ?  to  skin.  See  {Tear},  v.  t.] 
  1.  (Anat.)  The  outer,  nonsensitive  layer  of  the  skin; 
  cuticle;  scarfskin.  See  {Dermis}. 
 
  2.  (Bot.)  The  outermost  layer  of  the  cells,  which  covers  both 
  surfaces  of  leaves,  and  also  the  surface  of  stems,  when 
  they  are  first  formed.  As  stems  grow  old  this  layer  is 
  lost,  and  never  replaced. 
 
  From  WordNet  r  1.6  [wn]: 
 
  epidermis 
  n  :  the  outer  layer  of  the  skin  covering  the  exterior  body 
  surface  of  vertebrates  [syn:  {cuticle}] 




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