intercommunion

English

Etymology

inter- +‎ communion

Noun

intercommunion (countable and uncountable, plural intercommunions)

1. communion (association) between people or groups
2. The participation, together, in Holy Communion of people from different denominations
3. In Roman Catholicism, the theological principle which governs whether it is permissible for a Roman Catholic to partake of the Eucharist in a non-Catholic service, and vice versa