Relating to or employing methods of biographical bibliography; describing research that combines life history with comprehensive documentation of sources.
From biobibliographic + -al (adjective suffix). The fuller adjectival form, used to emphasize the scholarly rigor of biographical research documentation.
A biobibliographical study is basically the ultimate biography—it doesn't just tell you about someone's life, it shows you every single source proving every single claim, making it unchallengeable.
Complete word intelligence in one call. Free tier — 50 lookups/day.