Definition of "prayer book" []

• A book containing religious prayers. (noun)
• The Book of Common Prayer. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This Pian Breviary (Breviarium Pianum), while still remaining the official prayer book of the Universal Church, has undergone certain slight alterations in the course of time, and these must here be noted, but without reference to the new feasts of saints which have been added to the Calendar century by century, even though they occupy a not inconsiderable space in the ecclesiastical disposition of the year."
• "There was alsoe a ffine prayer book or Mass book of Q. Marias, this was in the new part of the Library which was neately wanscoated and adorned."
• "Externally and internally, his life had changed dramatically since that silver hair had flagged him down, and though the next day was Christmas, it was not upon the pigs roasting in Lord Aelfric's ovens nor the epiphanies marinating in the prayer book of the priest that he dwelled, but upon his path from kingship to peasantry and upon what future twists that road might take."