browse words by letter
a b c d e f g h i j k l m n o p q r s t u v w x y z

planetmore about planet

planet


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Planet  \Plan"et\,  n.  [OE.  planete,  F.  plan[`e]te,  L.  planeta, 
  fr  Gr  ?,  and  ?  a  planet;  prop.  wandering,  fr  ?  to  wander, 
  fr  ?  a  wandering.] 
  1.  (Astron.)  A  celestial  body  which  revolves  about  the  sun  in 
  an  orbit  of  a  moderate  degree  of  eccentricity.  It  is 
  distinguished  from  a  comet  by  the  absence  of  a  coma,  and 
  by  having  a  less  eccentric  orbit.  See  {Solar  system}. 
 
  Note:  The  term  planet  was  first  used  to  distinguish  those 
  stars  which  have  an  apparent  motion  through  the 
  constellations  from  the  fixed  stars,  which  retain  their 
  relative  places  unchanged.  The  inferior  planets  are 
  Mercury  and  Venus,  which  are  nearer  to  the  sun  than  is 
  the  earth;  the  superior  planets  are  Mars,  the 
  asteroids,  Jupiter,  Saturn,  Uranus,  and  Neptune,  which 
  are  farther  from  the  sun  than  is  the  earth.  Primary 
  planets  are  those  which  revolve  about  the  sun; 
  secondary  planets,  or  moons,  are  those  which  revolve 
  around  the  primary  planets  as  satellites,  and  at  the 
  same  time  revolve  with  them  about  the  sun. 
 
  2.  A  star,  as  influencing  the  fate  of  a  men. 
 
  There's  some  ill  planet  reigns.  --Shak. 
 
  {Planet  gear}.  (Mach.)  See  {Epicyclic  train},  under 
  {Epicyclic}. 
 
  {Planet  wheel},  a  gear  wheel  which  revolves  around  the  wheel 
  with  which  it  meshes,  in  an  epicyclic  train. 
 
  From  WordNet  r  1.6  [wn]: 
 
  planet 
  n  1:  any  of  the  celestial  bodies  (other  than  comets  or 
  satellites)  that  revolve  around  the  sun  in  the  solar 
  system 
  2:  a  person  who  follows  or  serves  another  [syn:  {satellite}] 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  Planet 
 
  ["An  Experiment  in  Language  Design  for  Distributed  Systems", 
  D.  Crookes  et  al  Soft  Prac  &  Exp  14(10):957-971  (Oct  1984)]. 
 
 




more about planet