\Ves"pers\, n. pl. [OF. vespres, F. v[^e]pres, LL. vesperae, fr. L. vespera evening. See {Vesper}, n.] (R. C. Ch.) (a) One of the little hours of the Breviary. (b) The evening song or service. {Sicilian vespers}. See under {Sicilian}, a.