ˈkwi]nik-, ˈkwī] noun
Etymology: quinic from quin- + -ic
1. : a crystalline acid C 6 H 7 (OH) 4 COOH obtained from cinchona bark, coffee beans, and other plant products and synthetically by hydrolysis of chlorogenic acid; 1,3,4,5- tetrahydroxy-cyclohexane-carboxylic acid
2. : quininic acid