phenolic UK /fɪˈnɒlɪk/US /fɪˈnɑlɪk/noun 3adjective 1forms 1 noun3 •A phenol compound. •Any of a large group of pigments and flavouring agents, especially those found in grapes and wine. •Any thermosetting resin manufactured from phenols and aldehydes. adjective1 •Of, relating to, or derived from a phenol.“Eggplant is highly nutritious, but it can be bitter due to its phenolic compounds.” — 2022 formsphenolics