Macdonald triad

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English[edit]

Etymology[edit]

Named after John Macdonald (psychiatrist), who proposed it in the 1960s.

Proper noun[edit]

Macdonald triad

English Wikipedia has an article on:
Wikipedia
  1. A set of three behavioral characteristicscruelty to animals, firesetting, and bedwetting past the age of five — claimed to be associated with later violent tendencies.