Economics. the theory, practice, or system of fostering or developing domestic industries by protecting them from foreign competition through duties or quotas imposed on importations.
any program, policy, or system of laws that seeks to provide protection for property owners, wildlife, the environment, etc.
Origin of protectionism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Online Etymology Dictionary, © 2010 Douglas Harper