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protuberancemore about protuberance

protuberance

 

  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Protuberance  \Pro*tu"ber*ance\,  n.  [Cf.  F.  protub['e]rance.  See 
  {Protuberant}.] 
  That  which  is  protuberant  swelled  or  pushed  beyond  the 
  surrounding  or  adjacent  surface;  a  swelling  or  tumor  on  the 
  body;  a  prominence;  a  bunch  or  knob;  an  elevation. 
 
  {Solar  protuberances}  (Astron.),  certain  rose-colored  masses 
  on  the  limb  of  the  sun  which  are  seen  to  extend  beyond  the 
  edge  of  the  moon  at  the  time  of  a  solar  eclipse.  They  may 
  be  discovered  with  the  spectroscope  on  any  clear  day 
  Called  also  {solar  prominences}.  See  Illust.  in  Append. 
 
  Syn:  {Projection},  {Protuberance}.  protuberance  differs  from 
  projection,  being  applied  to  parts  that  rise  from  the 
  surface  with  a  gradual  ascent  or  small  angle;  whereas  a 
  projection  may  be  at  a  right  angle  with  the  surface. 
 
  From  WordNet  r  1.6  [wn]: 
 
  protuberance 
  n  1:  something  that  protrudes  [syn:  {bulge},  {bump},  {hump},  {gibbosity}, 
  {gibbousness},  {jut},  {prominence},  {protrusion},  {extrusion}, 
  {excrescence}] 
  2:  anything  that  branches  out  from  a  central  support  [syn:  {projection}]




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