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Webster 1828 Edition

casuistic

Relating to casuistry (attempts to solve moral dilemmas by applying general rules).
Overly subtle, hair-splitting.
- 1855, Sir Richard Burton, Personal Narrative of a Pilgrimage to Al-Madinah and Meccah
  These subjects have exercised not a little the casuistic talents of the Arab doctors: a folio volume might be filled with differences of opinion on the subject, "Is a blind man sound?"

relating to casuistry

overly subtle, hair-splitting