2026-09-28T17:09:52+01:00https://marinefinds.org.uk/datalabs/terminology/object/format/jsonhttps://marinefinds.org.uk/datalabs/terminology/object/format/xmlhttps://marinefinds.org.uk/datalabs/terminology/object3862139792TRAPDOORY A horizontal door within, and usually flush with surface of, a floor, ceiling or roof.546P