ABACUS A FRAME STEAM ENGINE BT : CAPITAL BT : STEAM ENGINE SN : The flat slab at the top of a capital. SN : A simple, single cylinder vertical steam engine with its cylinder mounted directly on a baseplate, driving an overhead ABUTMENT crankshaft which is supported by two A-shaped frames UF : Butment BT : STRUCTURAL COMPONENT AGED MENS WARD SN : Solid masonry placed to counteract the lateral thrust of a BT : BUILDING COMPONENT vault or arch. SN : Series of rooms within a workhouse where elderly men were housed. ACANTHUS BT : FLORAL FEATURE AGIASTERIUM SN : A long much indented leaf usually curled over at the tip BT : INTERNAL AREA OR SPACE which is a standard form of foliage in classical decoration. SN : The area of the Basilica, especially in the early church, in which the altar resides. ACHIEVEMENT OF ARMS UF : Arms AGRAFE UF : Coat Of Arms UF : Agraffe BT : DECORATIVE FEATURES BT : KEYSTONE NT : ESCUTCHEON SN : A keystone decorated with a relief sculpture, usually a NT : HATCHMENT cartouche SN : A display or depiction of authorised armorial bearings, such as the elements of a coat of arms, livery and personal Agraffe badges and flags, mottoes etc.. USE : AGRAFE ACROTERION AILERON BT : PEDESTAL BT : GABLE RT : PEDIMENT BT : PEDIMENT SN : A plinth or pedestal, sometimes decorated, and SN : A half gable or half pediment concealing the lean-to roof sometimes supporting statuary, placed at the apex and lower of an aisle. extremity of a pediment. Airing Yard ADIT USE : EXERCISE YARD BT : ENTRANCE SN : A passage, usually horizontal, leading into a mine to AIR PUMP allow for access or drainage. BT : PUMP SN : A pump for removing condensed steam from the ADMINISTRATION BLOCK condenser of a steam raising plant. BT : BUILDING COMPONENT SN : A part of a building or complex where administrative Air Shaft duties are undertaken. USE : VENTILATION SHAFT Adyton AISLE USE : ADYTUM BT : STRUCTURAL COMPONENT BT : PASSAGE ADYTUM NT : AMBULATORY (INTERIOR) UF : Adyton NT : CARREL (AISLE) BT : ROOM NT : PASSAGE AISLE SN : Originally, the inner sanctuary of a Greek temple from SN : The side compartment of a building, usually a church, where the oracle was delivered. Now used for any private hall or barn, separated from the main body of the building by chamber or sanctuary. an arcade; or a passage allowing access to rows of seats in an auditorium or church. AEDICULE (FRAME) BT : STRUCTURAL COMPONENT AISLE PLATE RT : DOOR BT : WALL PLATE RT : NICHE SN : A horizontal member along the length of an aisle wall to RT : WINDOW receive the ends of rafters. SN : The framing of a door or window with two columns piers or pilasters which support a lintel,entablature etc. AISLE TRUSS BT : TRUSS AEDICULE (SHRINE) SN : A roof truss supported by arcade posts in an aisled BT : SHRINE building. SN : An opening or shrine, usually containing a statue, framed by a pair of pilasters or columns supporting an Alatoria entablature and pediment. USE : COVERED WAY USE : AUMBRY Alatorium USE : COVERED WAY AMBULATORY (EXTERNAL) UF : Deambulatory ALCOVE BT : EXTERNAL AREA OR SPACE BT : STRUCTURAL COMPONENT NT : CLOISTER SN : A recess within a wall or room. SN : A path or area for exercise, usually taken in the form of walking. Can be partially or totally covered. Aleois USE : LOOPHOLE AMBULATORY (INTERIOR) BT : AISLE Allure RT : ALTAR SCREEN USE : ALURE RT : CHEVET SN : An aisle within a chancel providing access to, and Almery around, the High Altar and surrounding cells. USE : AUMBRY AMORINO ALMONRY BT : HUMAN FIGURE SN : A representation of a winged boy who represents Cupid BT : ROOM or Love. SN : A room in a monastery from which alms were distributed; or the residence of an almoner. Analemma Alorium USE : BUTTRESS USE : COVERED WAY Analemma ALTAR USE : WALL UF : Communion Table ANCHORAGE BT : FIXTURES AND FITTINGS RT : ALTAR RAIL BT : ROOM SN : An elevated table or podium on which to place, or SN : A room over the vestry of a church, often thought to sacrifice, offerings to a god or gods. have been where anchorets lived. ALTAR RAIL ANCHOR AND COLLAR HINGE UF : Communion Rail BT : HINGE BT : FIXTURES AND FITTINGS SN : A simple type of hinge used for large gates. RT : ALTAR SN : A rail or balustrade that separates the altar from the rest ANCHOR BEAM of the church. BT : BEAM SN : A beam the end of which is fixed beyond the upright it ALTAR SCREEN passes through. BT : SCREEN RT : AMBULATORY (INTERIOR) ANCONE (CONSTRUCTION) RT : CHOIR BT : STRUCTURAL COMPONENT SN : A partition or wall behind an altar, often separating the SN : A projection left on a stone block to allow it to be hoisted choir and altar from the ambulatory and east chapel. into position. Alura ANCONE (STRUCTURAL) USE : ALURE BT : STRUCTURAL COMPONENT SN : An ornamental bracket on either side of a doorway ALURE supporting a cornice. UF : Allure UF : Alura ANGLE BAR BT : BUILDING COMPONENT BT : STRUCTURAL COMPONENT SN : A walkway around the parapets of a castle or the roof of SN : The corner upright bar of a polygonal sash. a church. Angle Bead AMBITUS USE : ANGLE STAFF BT : INTERNAL AREA OR SPACE BT : EXTERNAL AREA OR SPACE ANGLE BOB RT : TOMB BT : MACHINERY SN : The consecrated ground immediately surrounding a SN : A mechanical component or device that can change tomb or grave. the direction of motion of a pump rod from the vertical to the horizontal plane and vice versa. AMBO BT : FIXTURES AND FITTINGS Angle Brace SN : A reading desk usually placed near the west end of the USE : BRACE choir. ANGLE BRACKET Ambry BT : BRACKET SN : A bracket that is shaped to form an angle. ANIMAL FIGURE ANGLE BUTTRESS BT : DECORATIVE FEATURES BT : BUTTRESS NT : BUCRANIUM SN : Two buttresses which meet at a right angle at the corner NT : GARGOYLE of the structure they are supporting. NT : GROTESQUE SN : A sculptural or decorative representation of an animal. ANGLE CAPITAL Includes mythical and fantastical animals such as dragons, UF : Corner Capital centaurs etc. BT : IONIC CAPITAL SN : A capital at the corner of a colonade or portico in the ANNEX Ionic Order in which the volutes are splayed outwards at 45 BT : BUILDING COMPONENT degrees. SN : A structure, or building, forming a supplementary and subsidiary part of a main complex. ANGLE CHIMNEY BT : CHIMNEY ANNULAR MOULDING SN : A chimney placed at an angle with the walls so that there BT : MOULDING is an obtuse angle with each wall. SN : A circular moulding. ANGLE COLUMN ANNULAR VAULT UF : Angular Column BT : VAULT BT : COLUMN SN : A term used to describe a vaulted roof where the vault SN : A column at the corner of a structure. goes from either the newel of a staircase to a wall or from one wall to another where the walls are circular in plan. ANGLE MODILLION BT : MODILLION ANNULATED COLUMN SN : A diagonally set modillion placed at a cornice's external BT : COLUMN corner. SN : A column joined to another by a band or ring. ANGLE RAFTER ANNULET BT : PRINCIPAL RAFTER BT : COLUMN SN : A principal rafter below a hip rafter that supports the SN : A small, flat band or fillet around a shaft or column. ends of purlins under a hip. Anse De Panier ANGLE RIB USE : BASKET ARCH BT : RIB SN : A rib placed at an angle to support timbers. ANTA BT : PILASTER ANGLE STAFF SN : A pilaster terminating the side walls of a temple whose UF : Angle Bead capital and base differ from those of its associated columns. BT : STRUCTURAL COMPONENT Such an arrangement, where the columns do not project SN : A vertical piece of wood fixed on corners of walls to help beyond the faces of the antae, is said to be 'in antis'. the fixing of plaster and to protect against damage to the plaster. Antechamber USE : ANTEROOM Angle Stone USE : QUOIN ANTECHAPEL BT : INTERNAL AREA OR SPACE ANGLE STRUT SN : The partially enclosed western part of a chapel, leading BT : STRUT to the chapel proper. SN : A strut which is at an angle between the principal rafter and tiebeam. ANTECHOIR UF : Forechoir ANGLE TOWER BT : INTERNAL AREA OR SPACE BT : TOWER SN : Part of a church in front of the choir and usually SN : A projection from the inner angle of a building around a enclosed by tombs, screens etc. court or with advancing wings, usually containing a staircase and often crowned above the roof line with an ogee dome. ANTECHURCH UF : Forechurch ANGULAR CAPITAL BT : BUILDING COMPONENT BT : IONIC CAPITAL NT : NARTHEX (MEDIEVAL) SN : A type of Ionic diagonal capital where all four sides are SN : An addition to the west end of a church which is similar the same and with therefore eight volutes. to a porch or narthex but usually consists of a nave and aisles. Angular Column USE : ANGLE COLUMN ANTECOURT BT : COURTYARD ANGULAR NICHE SN : The first court which is before the principal court. BT : NICHE SN : A niche in the corner of a structure. ANTEFIX BT : DECORATIVE FEATURES SN : A decorative tile on the end of the cornice or eaves of a APPLIED ORDER building to conceal the ends of tiles. BT : ORDER SN : A classical order in which the columns or pilasters are ANTEHALL applied to a wall. BT : ROOM SN : The hall before a great hall. APRON BT : STRUCTURAL COMPONENT Antepagmenta RT : NICHE USE : ARCHITRAVE RT : WINDOW SN : A shaped or decorated raised panel below the sill of a ANTEPORTICO window or a niche. BT : EXTERNAL AREA OR SPACE RT : CLOISTER APSE SN : A porch in front of the solid wall of a cloister. BT : STRUCTURAL COMPONENT NT : APSIDIOLE ANTEROOM NT : COUNTER APSE UF : Antechamber RT : CHEVET BT : ROOM RT : EXEDRA SN : A room before a larger room which is often used as a SN : A polygonal or semicircular recess projecting from an waiting room.