• WordNet 3.6
    • n nonintervention a foreign policy of staying out of other countries' disputes
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Webster's Revised Unabridged Dictionary
    • n Nonintervention The state or habit of not intervening or interfering; as, the nonintervention of one state in the affairs of another.
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Century Dictionary and Cyclopedia
    • n nonintervention The act or policy of not intervening or not interfering; specifically, systematic non-interference by a nation in the affairs of other nations, or in the affairs of its own states, territories, or other parts.
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In science:

Alteplase Thrombolysis for Acute Noninterventional Therapy in Ischemic Stroke.
Post-ischaemic treatment with the cyclooxygenase-2 inhibitor nimesulide reduces blood-brain barrier disruption and leukocyte infiltration following transient focal cerebral ischaemia in rats