Bistoury

(pis’ -too-re) [Fr. bistouri]. Along, slender knife, straight or curved, used in surgery. Bisulphate A sulphate (bi-suV-fdt) \bi,base in which the two;replaces sulphur”]. but one of the two hydrogen atoms of the acid. Any acid sulphate having twice the amount of acid contained in the corresponding normal sulphate. 149