Hastate \Has"tate\ (h[a^]s"t[asl]t), Hastated \Has"ta*ted\ (h[=a]s"t[asl]*t[e^]d), a. [L. hastatus, fr. hasta spear. Cf. {Gad}, n.] Shaped like the head of a halberd; triangular, with the basal angles or lobes spreading; as, a hastate leaf. [1913 Webster]