Architecture Terms Ambulatory: A covered passageway for walking. In a church, the semicircular passage around the main altar. Apse (aap’ss): A large semicircular or polygonal niche, domed or vaulted. In a Roman basilica the apse was placed at one or both ends or sides of the building. In a Christian church it is usually placed at the east end of the nave beyond the choir. Arcade: A covered walk made of arches on piers or columns, rather than lintels. Arch: 1. Commonly, any curved structural member that is used to span an opening. 2. Specifically, restricted to the spanning members of a curved opening that are constructed of wedge-shaped stones called voussoirs. Arches may be of many shapes, basically round or pointed. Artistic Medium: The elements or material out of which works of art are made. Balustrade: A rail or handrail along the top edge of a roof or balcony, made up of a top horizontal rail, a bottom rail, and short columns between. Baptistry: The building or room for performing the rite of baptism. Contains a basin or pool. Baroque: Term fist applied to the visual arts and later to the music and literature of the 17th and 18th centuries. Base: 1. The lowest visible part of a building. 2. The slab on which some column shafts rest. Bay: One of a series of regularly repeated spaces of a building marked off by vertical elements. Beam: A large piece of squared timber, long in proportion to its bredth and thickness, used for spanning spaces. Boss: The circular keystone at the crossing of diagonal ribs. May be richly carved and decorated. Buttress: The vertical exterior mass of masonry built at right angles into the wall to strengthen it and to counteract the lateral thrust of a vault or arch. Capital: The uppermost or crowning member of a column, pilaster, or pier that forms the visual transition from the post to the lintel above. Cella: The principal chamber of a Greek or Roman temple, housing the cult image. Centering: The temporary wooden structure that supports an arch or dome while it is being erected. Centered space: A site-natural or manmade-that organizes other places around it. Chaitya: Buddhist term for the hall of worship. Chapel: 1. A small church. 2. A separate compartment in a large church that has its own altar. Choir: The part of the church reserved for clergy and singers, usually the space between the crossing as the apse. Music: A group of singers in a church. Classic, Classical: All arts: Recognized generally to be excellent, time-tested. Coffer, Coffering: Originally a casket or box, later, a recessed ceiling panel. Coffering is a technique for making a ceiling of recessed panels. Colonnade: A series of regularly spaced columns supporting a lintel or entablature. Column: A cylindrical, upright post or pillar. It may contain three parts: base, shaft, and capital. Configurational center: A place of special value, a to dwell. Content: All Arts: What the form contains and means. Content may include subject matter and theme. The quality of a work of art is often judged by the appropriateness, or apparent inseparability, of form and content. Cornice: 1. The horizontal projection that finishes the top of a wall. 2. In classical architecture, the third or uppermost horizontal section of and entablature. Dome: A curved or hemispherical roof structure spanning a space and resting on a curved, circular, or polygonal base. Theoretically, a dome is an arch rotated 360 degrees around a central axis. Drum: The cylindrical or polygonal structure that rises above the body of a building to support a dome. Earth-resting architecture: Buildings that accent neither the earth nor the sky, using the earth as a platform with the sky as a background. Earth-rooted architecture: Buildings that bring out with special force the earth and its symbolisms. Elevation: 1. Generally, a term that refers to one of the sides of a building.2. Specifically, a drawing or graphic representation showing one face or side of a building. It can be on the interior or exterior. Facade (fa-sahd’): a face of a building. Fluting: The grooves or channels, usually parallel, that decorate the shafts of columns. Fluting may run up and down a shaft or around the shaft in various directions. Form: All Arts: The arrangement or organization of elements of a work of art in space or time. A form may be conventional or imposed by tradition (The Greek temple) or original with the artist. Gable: The triangular space at the end of a building formed by the slopes of a pitched roof, extending from the cornice or eaves to the ridge. In classical architecture the gable is call a pediment. Gallery: Along, covered area, usually elevated, that acts as a passageway on the inside or exterior of a building. Ground Plan: A drawing of a horizontal section of a building that shows the arrangement of the walls, windows, supports and other elements. A ground plan is used to produce blueprints. Image: All Arts: The representation of sense impressions to the imagination. Jamb: A vertical member at either side of a door frame or window frame. When sculpture is attached to this member it is called a jamb sculpture or jamb figure. Keystone: The central wedge-shaped stone of an arch that locks together the others. Lantern: The windowed turret or tower-like form that crowns a dome or roof. Lintel: The horizontal member or beam that spans an opening between two upright members, or posts, over a window, door, or similar opening. Medium: The material or materials with which the artist works. Molding: A member used in construction or decoration that produces a variety in edges or contours by virtue of its curved surface. Nave: In Roman architecture, the central space of a basilica; in Christian architecture, the central longitudinal or circular space in the church, bounded by aisles. Niche (nish): A semicircular or similarly shaped recess in a wall designed to contain sculpture, and urn, or other object. It is usually covered by a halfdome. Oculus (ock’you-luhs): Circular opening at the crown of a dome. Orders: Types of columns with entablatures developed in classical Greece. The orders are basically three: Doric, Ionic, and Corinthian. They determine not only the scale and therefore dimensions of a temple but also the experience generated by the building, or its style. Pediment: In classical architecture the triangular space at the end of a roof formed by the sloping ridges of the roof. Pier: A column, post, or similar member designed to carry a great load; may also refer to a thickened vertical mass within the wall designed to provide additional support. Podium: the high platform or base of a Roman temple, or any elevated platform. Post-and-Lintel: An essential system of building characterized by the use of uprights-posts--which support horizontal beams--lintels--in order to span spaces. Used as supports for a window or door, the posts are the jambs and the lintel is the window head. Rib: Generally a curved structural member that supports any curved shape or panel. Ridge: The line defined by the meeting of the two sides of a sloping roof. Section: The drawing that represent a vertical slide through the interior or exterior of a building, showing the relation of floor to floor. Shed Roof: a roof shape with only one sloping plane, such as the roof of a lean-to, or that over the side aisle in a Gothic or Romanesque church. Sky-oriented architecture: Buildings that bring out with special force the sky and its symbolisms. Stained Glass: Glass to which a color is added during its molten state, or glass which is given a hue by firing or otherwise causing color to adhere to the glass. Subject: What the work is about. Thrust: The downward and outward pressure exerted by a vault or dome on the walls supporting it. Triumphal Arch: The monumental urban gateway, invented by the Romans, set up along a major street to commemorate important military successes. Vault: The covering or spanning of a space employing the principle of the arch and using masonry, brick, plaster, or similar malleable materials. The extension of an arch infinitely in one plane creates a barrel or tunnel vault. Volume: Refers to the void or solid three dimensional quality of a space or form whether completely enclosed or created by the presence of forms which act as boundaries. Wall: A broad, substantial upright slab that acts as an enclosing form capable of supporting its own weight and the weight of beams or arches to span and enclose space, Ziggurat: The Mesopotamian temple-tower.