The Collaborative International Dictionary of English v.0.48:
Calcarate \Cal"ca*rate\, Calcarated \Cal"ca*ra`ted\, a. [LL. calcaratus, fr. L. calcar. See 2d Calcar.] [1913 Webster] 1. (Bot.) Having a spur, as the flower of the toadflax and larkspur; spurred. --Gray. [1913 Webster] 2. (Zool.) Armed with a spur. [1913 Webster]