Definitions for "Psalter"
The Book of Psalms; -- often applied to a book containing the Psalms separately printed.
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.
A rosary, consisting of a hundred and fifty beads, corresponding to the number of the psalms.
Bamberg, Staatsbibliothek, MS A. I. 14 is an early 10th century Psalter made for Salomo III, the Abbot of St. Gall in 909.