1) Christian term 
A martyrology is a catalogue or list of martyrs and other saints and beati arranged in the calendar order of their anniversaries or feasts. Local martyrologies record exclusively the custom of a particular Church. Local lists were enriched by names borrowed from neighbouring churches. Consolidation occurred, by the combination of several local mar...
study of martyrs
• (n.) A history or account of martyrs; a register of martyrs.
Liturgical book that contains the names of the saints (including saints that are not martyrs), with some information on their origin, date and place of martyrdom or death
Mar`tyr·ol'o·gy noun ; plural -gies . [ Martyr + -logy .] A history or account of martyrs; a register of martyrs. Bp. Stillingfleet. 
martyrology, martyrologies 1. The branch of historical knowledge dealing with the lives of martyrs. 2. A history of religious martyrs. 3. Such histories collectively. 4. A list or catalogue of martyrs. 5. An account of the life and manner of the death of a martyr. 6. The branch of ecclesiastical history or hagiography that deals with martyrs.