Curcuma \Cur"cu*ma\ (k?r"k?-m?), n. [Cf. F., It., & Sp. curcuma; all fr. Ar. kurkum. Cf. {Turmeric}.] (Bot.) A genus of plants of the order {Scitamine[ae]}, including the turmeric plant ({Curcuma longa}). [1913 Webster] {Curcuma paper}. (Chem.) See {Turmeric paper}, under {Turmeric}. [1913 Webster]