A subsidiary branch, as of a government, by means of which functions or policies are carried out.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "instrumentality" in a sentence
"So in the quickening of the dead to spiritual life, human instrumentality is employed first to prepare the way, and then to turn it to account."
"Yes, the notion of instrumentality is handled differently in Slavic languages."
"He was able to communicate with Jehovah himself, and the simple instrument that he used was one that is always in vogue with the human race, that is, the instrumentality of prayer."