In Catholicism and in Orthodoxy there is a difference between the Worship owed God alone (which includes adoration, sacrifice and I forget the other) Latria and that which is the reverence and devotion given to the Blessed Virgin, Hyperdulia and that given to the Saints, Dulia.
Because we believe in the Sacrifice of the Mass for us Worship of the Triune God is more than prayer, Bible readings and sermons. To us that would be a prayer service and a means of showing our devotion to God. But it would not be a complete act of Worship.
Only in the Catholic mind.
It's more like being sort of pregnant, but you're still pregnant.
And it's still worship.