What is "caffeic"

Caffeic \Caf*fe"ic\, a. [See Coffee.] (Chem.) Pertaining to, or obtained from, coffee.

Caffeic acid, an acid obtained from coffee tannin, as a yellow crystalline substance, C9H8O4.

Caffeic is an adjective referring to coffee (see also : Caffè the Italian word for it, written with two "f"). It can be found in:

• Caffeic acid, a hydroxycinnamic acid
• Caffeic aldehyde, a phenolic aldehyde contained in the seeds of Phytolacca americana