cactus, i, m., = ka/ktos, a prickly plant with edible stalks, etc., found in Sicily, Spanish artichoke: Cynara cardunculus, Linn.; Plin. 21, 16, 57, 97.—II.Trop., any thing thorny, unpleasant: eradicato omni cacto et rubo subdolae familiaritatis, Tert. Pall. 2 fin.