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undulationmore about undulation

undulation


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Undulation  \Un`du*la"tion\,  n.  [Cf.  F.  ondulation.] 
  1.  The  act  of  undulating;  a  waving  motion  or  vibration;  as 
  the  undulations  of  a  fluid,  of  water,  or  of  air;  the 
  undulations  of  sound. 
 
  2.  A  wavy  appearance  or  outline;  waviness.  --Evelyn. 
 
  3.  (Mus.) 
  a  The  tremulous  tone  produced  by  a  peculiar  pressure  of 
  the  finger  on  a  string,  as  of  a  violin. 
  b  The  pulsation  caused  by  the  vibrating  together  of  two 
  tones  not  quite  in  unison;  --  called  also  {beat}. 
 
  4.  (Physics)  A  motion  to  and  fro,  up  and  down  or  from  side 
  to  side  in  any  fluid  or  elastic  medium,  propagated 
  continuously  among  its  particles,  but  with  no  translation 
  of  the  particles  themselves  in  the  direction  of  the 
  propagation  of  the  wave;  a  wave  motion;  a  vibration. 
 
  From  WordNet  r  1.6  [wn]: 
 
  undulation 
  n  :  (physics)  a  progressive  disturbance  propagated  without 
  displacement  of  the  medium  itself  [syn:  {wave}] 




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