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calyptra

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calyptra


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Calyptra  \Ca*lyp"tra\  (k[.a]*l[i^]p"tr[.a]),  n.  [NL.,  fr  Gr 
  kaly`ptra  a  covering  for  the  head,  fr  kaly`ptein  to  cover.] 
  (Bot.) 
  A  little  hood  or  veil,  resembling  an  extinguisher  in  form  and 
  position,  covering  each  of  the  small  flasklike  capsules  which 
  contain  the  spores  of  mosses;  also  any  similar  covering 
  body. 
 
  From  WordNet  r  1.6  [wn]: 
 
  calyptra 
  n  :  hood  or  cap-like  part  covering  the  calyx  of  certain  plants: 
  e.g.  the  California  poppy 




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