1. 
   Sitfast
   Sit'fast` adjective [ Sit + fast .] Fixed; stationary; immovable. [ R.] « 'T is good, when you have crossed the sea and back, To find the sitfast acres where you left them.» Emerson.
   Found op http://www.encyclo.co.uk/webster/S/110
   
   
2. 
   Sitfast
   Sit'fast` noun (Far.) A callosity with inflamed edges, on the back of a horse, under the saddle.
   Found op http://www.encyclo.co.uk/webster/S/110
   
   
3. 
   sitfast
   <veterinary> A callosity with inflamed edges, on the back of a horse, under the saddle. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?sitfast
   
   
4. 
   Sitfast
   • (n.) A callosity with inflamed edges, on the back of a horse, under the saddle. • (a.) Fixed; stationary; immovable.
   Found op http://thinkexist.com/dictionary/meaning/sitfast/
   
   

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