Caf`fe·tan'nic adjective [ Caffe ic + tannic .] (Chemistry) Pertaining to, or derived from, the tannin of coffee. Caffetannic acid , a variety of tannin obtained from coffee berries, regarded as a glucoside. Found on http://www.encyclo.co.uk/webster/C/5
• (a.) Pertaining to, or derived from, the tannin of coffee.
Caf`fe·tan'nic adjective [ Caffe ic + tannic .] (Chemistry) Pertaining to, or derived from, the tannin of coffee. Caffetannic acid ,