Source : Webster's Revised Unabridged Dictionary (1913)

Biliary \Bil"ia*ry\ (b[i^]l"y[.a]*r[y^]; 106), a. [L. bilis
   bile: cf. F. biliaire.] (Physiol.)
   Relating or belonging to bile; conveying bile; as, biliary
   acids; biliary ducts.

   {Biliary calculus} (Med.), a gallstone, or a concretion
      formed in the gall bladder or its duct.