Source : Webster's Revised Unabridged Dictionary (1913)

Similar \Sim"i*lar\, a. [F. similaire, fr. L. similis like,
   similar. See {Same}, a., and cf. {Simulate}.]
   1. Exactly corresponding; resembling in all respects;
      precisely like.

   2. Nearly corresponding; resembling in many respects;
      somewhat like; having a general likeness.

   3. Homogenous; uniform. [R.] --Boyle.

   {Similar figures} (Geom.), figures which differ from each
      other only in magnitude, being made up of the same number
      of like parts similarly situated.

   {Similar rectilineal figures}, such as have their several
      angles respectively equal, each to each, and their sides
      about the equal angles proportional.

   {Similar solids}, such as are contained by the same number of
      similar planes, similarly situated, and having like
      inclination to one another.