‖n. pl. [ L. cursor, pl. cursores, a runner. ] (Zool.) (a) An order of running birds including the ostrich, emu, and allies; the Ratitaæ. (b) A group of running spiders; the wolf spiders. [ 1913 Webster ]

‖n. pl. [ NL., fr. L. fossor&unr_; digger, fr. fodere to dig. ] (Zool.) A group of hymenopterous insects including the sand wasps. They excavate cells in earth, where they deposit their eggs, with the bodies of other insects for the food of the young when hatched. [ Written also Fossoria. ] [ 1913 Webster ]

‖n. pl. [ NL., fr. L. insessor, lit., one who sits down, fr. incidere. See Insession. ] (Zool.) An order of birds, formerly established to include the perching birds, but now generally regarded as an artificial group. [ 1913 Webster ]

‖n. pl. [ NL., fr. L. radere, rasum, to scratch. See Rase, v. t. ] (Zool.) An order of birds; the Gallinae. [ 1913 Webster ]

☞ Formerly, the word Rasores was used in a wider sense, so as to include other birds now widely separated in classification. [ 1913 Webster ]

‖n. pl. [ NL., fr. L. scandere, scansum, to climb. ] (Zool.) An artifical group of birds formerly regarded as an order. They are distributed among several orders by modern ornithologists. [ 1913 Webster ]

☞ The toes are in pairs, two before and two behind, by which they are enabled to cling to, and climb upon, trees, as the woodpeckers, parrots, cuckoos, and trogons. See Illust. under Aves. [ 1913 Webster ]

‖n. pl. [ NL.; cf. L. stridere to creak, whiz, buzz. ] (Zool.) A division of passerine birds including the humming birds, swifts, and goatsuckers. It is now generally considered an artificial group. [ 1913 Webster ]