Vicar - Latin vicārius a substitute, performed, exercised, received, or suffered in place of another, taking the place of another person or thing; acting or serving as a substitute
A substitute indeed. The more I learn about the Catholic Church the more abhorrent it looks.
Rather than relying on Webster’s for your knowledge of Catholic doctrine, won’t you please just take a moment at the link I gave you? It might illuminate some misconceptions of the Church.