Insessores n 1: a bird with feet adapted for perching (as on tree branches); this order is now generally abandoned by taxonomists [syn: {Insessores}, {order Insessores}, {perching bird}, {percher}]
Insessor \In*ses"sor\, n.; pl. {Insessores}. [See {Insessores}.] (Zool.) One of the {Insessores}. The group includes most of the common singing birds. [1913 Webster]
Insessores \In`ses*so"res\, 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]