Lexicon · term
Seam failure
Also called Cross-topic concatenation.
A defect in assembled knowledge located at the join between two pieces rather than inside either of them. The join is syntactically perfect, so every structural check passes and only meaning is broken, which makes the defect detectable solely by a reader who already knows what both halves were supposed to be about. Named from our own corpus, where an ingestion pipeline concatenated unrelated query results into single well-formed documents.