from the GNU version of the Collaborative International Dictionary of English
- n. a prayer book or missal.
from The Century Dictionary and Cyclopedia
- n. A book containing the forms for public worship appointed for any given church; an office-book.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a book setting forth the forms of church service
Sorry, no etymologies found.
My father walks over and picks up a room service book next to a Travel & Leisure magazine.