beetroot /ˈbiːt.ɹuːt/noun 2verb 1forms 3 noun2 •(UK, Australia) A normally deep-red-colored root vegetable usually cooked or pickled before eating. •The edible part of the root of a beet plant, raw or prepared. verb1 •(informal) To turn a bright red or purple color.Harmon's face beetrooted. He strode from the office, stared at the cell block, and swore with artistry. — 2014 formsbeetrooted · beetrooting · beetroots