Source : Webster's Revised Unabridged Dictionary (1913)

Phosphatic \Phos*phat"ic\, a. (Chem.)
   Pertaining to, or containing, phosphorus, phosphoric acid, or
   phosphates; as, phosphatic nodules.

   {Phosphatic diathesis} (Med.), a habit of body which leads to
      the undue excretion of phosphates with the urine.