2026-04-08T12:32:57+01:0012,437260415https://marinefinds.org.uk/datalabs/terminology/objects/format/jsonhttps://marinefinds.org.uk/datalabs/terminology/objects/format/xmlhttps://marinefinds.org.uk/datalabs/terminology/objects590271107Open Pit MiningN1N3195138030OPEN PLANYA building plan where space is unconstrained by partitions.546P854292805Open PrisonN1N10095108113OPEN ROPEWALKYA long, narrow, rectangular plot of land used for the manufacture of rope. Usually walled, it may include small buildings and awnings at each end. Often attached to a warehouse.1P590371108Open SettlementN1N447468990OPEN SITEYA Palaeolithic or Mesolithic occupation site, excluding occupations of caves and rock shelters. Evidence for occupation may include traces of hearths and other structures.1P10060103814OPEN TRAINING PRISONYAn institution for the imprisonment of prisoners who can be trusted to serve their sentence without likelihood of escape and of being a threat to the public. There is no physical barrier designed to prevent absconding.1P3196138032OPEN TRUSSYA truss which does not subdivide a space, as in the centre of a hall of two bays or in an undivided building such as a barn.546P3197138033OPEN WELL STAIRCASEYA staircase, usually rising through more than one storey, with a space at its centre around which the stair is carried by strings and newels.546P649078148Open WorkN1N590571112Opencast Lead WorkingsN1N10856143712OPENCUTYA linear open working along a lode vein, worked directy from the surface. Survives as a gully or ravine, normally with closed ends.1P495369947OPERA HOUSEYAn often ornately decorated theatre for the performance of opera.1P854392806OPERATING THEATREYA room where surgical operations are performed. Originally in the form of a room with a raised table surrounded by tiered seating from where students could watch an operation or disection be performed.1P854492807Operating Theatre BlockN1N10502140449OPERATIONAL READINESS PLATFORMYAn area on post-war military airfields for parking aircraft on quick reaction alert to allow immediate access to the runway. Abbreviation ORP.1P10380140131OPERATIONS BLOCKYA building of varying designs intended for directing military aviation operations. Normally associated with military airfields.1P11438160524OPERATIONS ROOMYA room used for directing military operations and exercises.1P11108159130OperculaN1N854592808Ophthalmic DepartmentN1N854692809Ophthalmic HospitalN1N132910187895590OPIUM PIPEYA pipe designed for smoking opium.128P423468744OPPIDUMYAn imprecise term used to describe large Iron Age settlements of town-like proportions.1P854792810OPTICIANSYAn establishment for the testing of eyesight, making up of optical prescriptions and the sale of spectacles.1P133010187997508ORACLE BONEYA piece of bone used for divination.128P450969026ORANGERYYA gallery or building in a garden, usually south facing, used for the growing of oranges and other fruit.1P1202479110ORANGESYCitrus fruit of a distinctive orange colour.77P3198138034ORATORYYA small private chapel in either a house or church.546P511270112OratoryN1N414168649ORCHARDYAn enclosure used for the cultivation of fruit trees.1P