doc ‧ trine /ˈdɒktrən, ˈdɒktrɪn $ ˈdɑːk-/ BrE AmE noun
[ Date: 1300-1400 ; Language: French ; Origin: Latin doctrina , from doctor ; ⇨ ↑ doctor 1 ]
1 . [uncountable and countable] a set of beliefs that form an important part of a religion or system of ideas:
traditional doctrines of divine power
Marxist doctrine
2 . Doctrine [countable] American English a formal statement by a government about its future plans:
the announcement of the Truman Doctrine
—doctrinal /dɒkˈtraɪnl $ ˈdɑːktrən ə l/ adjective