3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Millstone  \Mill"stone`\,  n. 
  One  of  two  circular  stones  used  for  grinding  grain  or  other 
  substance. 
 
  No  man  shall  take  the  nether  or  the  upper  millstone  to 
  pledge.  --Deut.  xxiv. 
  6. 
 
  Note:  The  cellular  siliceous  rock  called  buhrstone  is  usually 
  employed  for  millstones;  also  some  kinds  of  lava,  as 
  that  Niedermendig  or  other  firm  rock  with  rough 
  texture.  The  surface  of  a  millstone  has  usually  a 
  series  of  radial  grooves  in  which  the  powdered  material 
  collects. 
 
  {Millstone  girt}  (Geol.),  a  hard  and  coarse,  gritty 
  sandstone,  dividing  the  Carboniferous  from  the 
  Subcarboniferous  strata.  See  {Farewell  rock},  under 
  {Farewell},  a.,  and  Chart  of  {Geology}. 
 
  {To  see}  {into,  or  through  {a  millstone},  to  see  into  or 
  through  a  difficult  matter.  (Colloq.) 
 
  From  WordNet  r  1.6  [wn]: 
 
  millstone 
  n  1:  (figurative)  something  that  hinders  or  handicaps;  "she  was 
  an  albatross  around  his  neck"  [syn:  {albatross}] 
  2:  something  difficult  to  carry 
  3:  one  of  a  pair  of  heavy  flat  disk-shaped  stones  that  are 
  rotated  against  one  another  to  grind  the  grain 
 
  From  U.S.  Gazetteer  (1990)  [gazetteer]: 
 
  Millstone,  KY 
  Zip  code(s):  41838 
  Millstone,  NJ  (borough,  FIPS  46590) 
  Location:  40.49935  N,  74.59127  W 
  Population  (1990):  450  (172  housing  units) 
  Area:  1.9  sq  km  (land),  0.0  sq  km  (water) 
  Millstone,  WV 
  Zip  code(s):  25261 

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