Holy Trinity and the Roman Catholic Church

The Roman Catholic Church and most Protestants do describe the RCC as trinitarian, but the Trinity is very different. The way the RCC presents Jesus in the Eucharist, He is almost unrecognizable as being both human and divine. 
Their teachings about Mary appear to make her a part of the Trinity making it a quaternity, Father, Son, Holy Spirit and Mary. Mary is being elevated to the status of God in the RCC. They say this is just adoration for her which they say is only due to God. When put into practice it is the same as worshipping God. The works attributed to Mary are the same as the works of Christ, salvation from sin, redemption, and mediation. She ascended into heaven bodily and returned to earth bodily on several different occasions. Many miracles like Jesus performed have been attributed to her by the RCC.
The RCC teaching about the sacramental system controls as well as diminishes the work of the Holy Spirit. The gifts of the Spirit are not communicated to us when and where God chooses, but are transferred through oil in the sacrament of confirmation. The cleansing of sin is not given through faith, but only by the Holy water used in the sacrament of baptism.
We may be using the same word, but the meanings are totally different.