The Catholic church is a denomination.
Actually, given the blasphemous rites and worship in pagan fashion, it looks more like Catholiciism is a different religion now. It once had roots in The Lord Jesus Christ, very early, but is now a different religion altogether, with worship of Mary, praying to dead people for intercession, eating the god of their belief system, and a priestly class ‘forgiving sin’ as if they work for God. They have the appearance of godliness but deny the power thereof to save the broken and contrite spirit and have God’s Holy Spirit indwelling, never to leave the believer.
I can think of other descriptive words; too...