3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Diametral  \Di*am"e*tral\,  a.  [Gr.  F.  diam['e]tral.] 
  Pertaining  to  a  diameter;  diametrical. 
 
  {Diametral  curve},  {Diametral  surface}  (Geom.),  any  line  or 
  surface  which  bisects  a  system  of  parallel  chords  drawn  in 
  a  curve  or  surface. 
 
  {Diametral  planes}  (Crystal.),  planes  in  which  two  of  the 
  axes  lie. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Diametral  \Di*am"e*tral\,  n. 
  A  diameter.  [Obs.]  --Sir  T.  Browne. 
 
  From  WordNet  r  1.6  [wn]: 
 
  diametral 
  adj  :  related  to  or  along  a  diameter;  "the  diametral  plane"  [syn: 
  {diametric},  {diametrical}] 

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