(n) order of plants distinguished by having a one-celled inferior ovary; many are parasitic or partly parasitic usually on roots, Syn. order Santalales
a. (Bot.) Of or pertaining to a natural order of plants (Santalaceae), of which the genus Santalum is the type, and which includes the buffalo nut and a few other North American plants, and many peculiar plants of the southern hemisphere. [ 1913 Webster ]