Protectionism

noun

1. The advocacy, system, or theory of protecting domestic producers by impeding or limiting, as by tariffs or quotas, the importation of foreign goods and services.
2. The doctrine of the protectionists; the system of protection. See protection, 4.
3. The doctrine or policy of protectionists. See protection, 4.
4. A policy of protecting the domestic producers of a product by imposing tariffs, quotas or other barriers on imports.
5. the policy of imposing duties or quotas on imports in order to protect home industries from overseas competition