Glossary

Said of a roof surface having a declination of less than 2%.

1. A substance which accelerates a chemical reaction but appears to remain unchanged itself. 2. A hardener that accelerates cure

A draped and canopied stage or scaffold, usually erected in a church, on which is placed the coffin or effigy

The atrium or courtyard of a basilican church.

Underground passageways used as cemeteries, with niches for sarcophagi or smaller ones for cinerary urns.