Psalter Psal"ter, n. [OE. psauter, sauter, OF. sautier, psaltier, F. psautier, from L. psalterium. See {Psaltery}.] 1. The Book of Psalms; -- often applied to a book containing the Psalms separately printed. [1913 Webster]

2. Specifically, the Book of Psalms as printed in the Book of Common Prayer; among the Roman Catholics, the part of the Breviary which contains the Psalms arranged for each day of the week. [1913 Webster]

3. (R. C. Ch.) A rosary, consisting of a hundred and fifty beads, corresponding to the number of the psalms. [1913 Webster]

The Collaborative International Dictionary of English. 2000.