a. Chem. [f. QUIN-A + -O- + TANNIC.] Quinotannic acid, a form of tannic acid found in cinchona bark. Hence Quinotannate.
1868. Watts, Dict. Chem., V. 30. Quinotannic acid is a light-yellow, friable, very hygroscopic mass, which becomes electric by friction. Ibid. The quinotannate of lead.
