Re‐spon″so‐ry, n.; pl.-ries (–r�z). [LL. responsorium.] 1. (Eccl.) (a) The answer of the people to the priest in alternate speaking, in church service. (b) A versicle sung in answer to the priest, or as a refrain.
Which, if should repeat again, would turn my answers into responsories, and beget another liturgy. Milton.
2. (Eccl.) An antiphonary; a response book.