missal(n = noun.communication) - (Roman Catholic Church) a book containing all the prayers and responses needed to celebrate Mass throughout the year;
is a kind of prayer book, prayerbook

   The book containing the service of the Mass for the entire year; a Mass book. [1913 Webster]

   Of or pertaining to the Mass, or to a missal or Mass book. Bp. Hall. [1913 Webster]

missal, n. RC Ch.
1 a book containing the texts used in the service of the Mass throughout the year.
2 a book of prayers, esp. an illuminated one.

Etymology:
ME f. med.L missale neut. of eccl.L missalis of the mass f. missa MASS(2)