Definition of "presbyterium"

Many stuccos and paintings were also found on the mosaic floor of the presbyterium and choir; most of these are now in the Bardo Museum in Tunis.

1976, A. Ennabli, “MACOMADES MINORES”, in Richard Stillwell, William L[loyd] MacDonald, Marian Holland McAllister, editors, The Princeton Encyclopedia of Classical Sites, Princeton, N.J.: Princeton University Press, page 540, column 1