Meanings
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1
noun
a book that collects primary documents, readings, or reference material on a particular subject
The course sourcebook contains translated letters, maps, and contemporary newspaper reports.
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2
noun
a supplementary book providing settings, rules, or background for a role-playing game
The new sourcebook describes the region's history and playable factions.
Thesaurus
Synonyms
2
noun
· a supplementary book...
supplement
Etymology
Formed from source + book. It originally described a collection that gives direct access to source material and later developed a specialized role-playing-game sense for a book of supplementary setting or rules information.