eleventh
E*lev"enth, a. Etym: [Cf. AS. endlyfta. See Eleven.] 1. Next after the tenth; as, the eleventh chapter. 2. Constituting one of eleven parts into which a thing is divided; as, the eleventh part of a thing. 3. (Mus.) Defn: Of or pertaining to the interval of the octave and the fourth. E*lev"enth, n. 1. The quotient of a unit divided by eleven; one of eleven equal parts. 2. (Mus.) Defn: The interval consisting of ten conjunct degrees; the interval made up of an octave and a fourth.