n. (Chem.) A gummy or mucilaginous tasteless substance obtained from the marigold or calendula, and analogous to bassorin. [ 1913 Webster ]
‖n. [ NL., fr. L. calendae calends. ] (Bot.) A genus of composite herbaceous plants. One species, Calendula officinalis, is the common marigold, and was supposed to blossom on the calends of every month, whence the name. [ 1913 Webster ]