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parallelsmore about parallels


  1  definition  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Parallel  \Par"al*lel\,  a.  [F.  parall[`e]le,  L.  parallelus,  fr 
  Gr  ?;  ?  beside  +  ?  of  one  another,  fr  ?  other  akin  to  L. 
  alius.  See  {Allien}.] 
  1.  (Geom.)  Extended  in  the  same  direction,  and  in  all  parts 
  equally  distant;  as  parallel  lines;  parallel  planes. 
  Revolutions  .  .  .  parallel  to  the  equinoctial. 
  Note:  Curved  lines  or  curved  planes  are  said  to  be  parallel 
  when  they  are  in  all  parts  equally  distant. 
  2.  Having  the  same  direction  or  tendency;  running  side  by 
  side  being  in  accordance  (with);  tending  to  the  same 
  result;  --  used  with  to  and  with 
  When  honor  runs  parallel  with  the  laws  of  God  and 
  our  country,  it  can  not  be  too  much  cherished. 
  3.  Continuing  a  resemblance  through  many  particulars; 
  applicable  in  all  essential  parts  like  similar;  as  a 
  parallel  case;  a  parallel  passage.  --Addison. 
  {Parallel  bar}. 
  a  (Steam  Eng.)  A  rod  in  a  parallel  motion  which  is 
  parallel  with  the  working  beam. 
  b  One  of  a  pair  of  bars  raised  about  five  feet  above  the 
  floor  or  ground,  and  parallel  to  each  other  --  used 
  for  gymnastic  exercises. 
  {Parallel  circles  of  a  sphere},  those  circles  of  the  sphere 
  whose  planes  are  parallel  to  each  other 
  {Parallel  columns},  or  {Parallels}  (Printing),  two  or  more 
  passages  of  reading  matter  printed  side  by  side  for  the 
  purpose  of  emphasizing  the  similarity  or  discrepancy 
  between  them 
  {Parallel  forces}  (Mech.),  forces  which  act  in  directions 
  parallel  to  each  other 
  {Parallel  motion}. 
  a  (Mach.)  A  jointed  system  of  links,  rods,  or  bars,  by 
  which  the  motion  of  a  reciprocating  piece,  as  a  piston 
  rod,  may  be  guided,  either  approximately  or  exactly  in 
  a  straight  line  --Rankine. 
  b  (Mus.)  The  ascending  or  descending  of  two  or  more 
  parts  at  fixed  intervals,  as  thirds  or  sixths. 
  {Parallel  rod}  (Locomotive  Eng.),  a  metal  rod  that  connects 
  the  crank  pins  of  two  or  more  driving  wheels;  --  called 
  also  {couping  rod},  in  distinction  from  the  connecting 
  rod.  See  Illust.  of  {Locomotive},  in  App.  --  {Parallel 
  ruler},  an  instrument  for  drawing  parallel  lines,  so 
  constructed  as  to  have  the  successive  positions  of  the 
  ruling  edge  parallel  to  each  other  also  one  consisting 
  of  two  movable  parts  the  opposite  edges  of  which  are 
  always  parallel. 
  {Parallel  sailing}  (Naut.),  sailing  on  a  parallel  of 
  {Parallel  sphere}  (Astron.  &  Geog.),  that  position  of  the 
  sphere  in  which  the  circles  of  daily  motion  are  parallel 
  to  the  horizon,  as  to  an  observer  at  either  pole. 
  {Parallel  vise},  a  vise  having  jaws  so  guided  as  to  remain 
  parallel  in  all  positions. 

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