glossary
- Abbey – Monastic complex headed by an abbot.
- Acanthus – Spiny plant found in the Mediterranean region whose leaves are used for the Corinthian capital.
- Acroteria – Leafy ornaments at the peaks or corners of classical pediments.
- Adobe – Building material made of sand, mud, clay, manure, and straw.
- Akron plan – A 19th-century combination of an auditorium-style church with Sunday school classrooms.
- Altar – A ceremonial table for the celebration of sacrifice and feast.
- Ambo – A church furnishing dedicated for public proclamation of scripture.
- Ambry – A decorative receptacle for the storage of holy oils.
- Annular vault – A circular barrel vault.
- Apse – A semicircular, polygonal, or square termination at the east end of a church.
- Arch – A curved structural unit made of smaller pieces that spans an opening.
- Archivolt – Ornamental moldings on the arches of a porch.
- Arcuation – The use of arches to connect columns in a colonnade.
- Ark of the Covenant – A gold-covered cedar box which served as God’s throne in the Temple of Solomon.
- Arris – The seam in a groin vault or the space between flutes on a column shaft.
- Artifice – A particularly clever or artful solution to an architectural design problem.
- Atlas figure – Male figures acting as columns.
- Atrium – The open forecourt in front of a church.
- Baldachino – A four-columned canopy over an altar; also called a baldachin, ciborium, or civory.
- Baptistery – A building or font for baptism.
- Barge board – A decorated board placed under a roof gable.
- Baroque – A mode of visually dynamic classicism in art and architecture, usually associated with 17th- and 18th-century Europe and New World colonies.
- Base – The lower components of a column beneath the shaft.
- Basilica – Originally an emperor’s audience hall, later a large longitudinal building for worship.
- Bellcote – An open gable tower holding bells.
- Biforiated – Split into two parts.
- Blind – The placement of moldings for a window, arcade, or door without openings.
- Boss – A multisided keystone joining the ribs of a vault.
- Bucrania – Carved ornaments appearing like oxen skulls indicating sacrifice and festivity.
- Buttress – A projecting unit for strengthening a wall.
- Byzantine Church – A division of Christianity, either Catholic or Orthodox, with roots in the Byzantine Empire.
- Byzantine Empire – The eastern section of the Roman Empire, named for its capital, Byzantium.
- Came – The grooved lead strip holding pieces of stained glass together.
- Campanile – A bell tower, often freestanding.
- Capital – The upper part or head of a column.
- Caryatid – Columns taking the form of women.
- Cast stone – Fine concrete used to imitate stone.
- Catacomb – Underground burial vaults in Rome used by Christians.
- Cathedra – The chair representing the authority of the office of bishop.
- Cathedral – The church which contains the cathedra.
- Centering – Wooden formwork used to construct arches.
- Chalice – The ornamented cup used for the Eucharist.
- Chapel – A smaller church or section of a church.
- Chimera – A carved figure on a church, often in the form of a monster.
- Choir – An interior chapel or area used for liturgical song.
- Christ – Name for Jesus meaning “anointed one.”
- Clapboard – Overlapping wooden boards used for siding.
- Classical – A method of design from ancient Greece and Rome, seeking harmony and symbolism.
- Clerestory – The level of upper windows in the central nave of a basilica.
- Cloisonné – The use of molten glass as enamel to decorate metal objects.
- Cloister – The enclosed courtyard of a monastic building complex.
- Coffer – Ornamented recessed panels, usually in a ceiling.
- Colonnade – A row of columns.
- Colonnettes – Small columns typically found in medieval architecture.
- Composite Order – A column type combining volutes and Corinthian leaves.
- Compound pier – A large support composed of smaller vertical members.
- Concatenation – The chain-like arrangement of elements.
- Concrete – A building material made of cement and small stones.
- Confessio – A tomb chapel beneath an altar.
- Corbel – A component projecting from a wall to support members above.
- Corinthian – A column type with a capital covered in acanthus leaves.
- Cosmatesque – Elaborate decoration composed of small stone pieces.
- Crenellation – A row of high and low battlements at a roofline.
- Crocket – A projecting ornament of bent foliage.
- Crossing tower – The tower over the crossing of a church.
- Cruciform plan – Designed in the shape of a cross.
- Crypt – The underground section of a church.
- Cubit – Ancient unit of measure based on the forearm length.
- Diapering – A repeating pattern of similar units.
- Doric – A stout, simple column type with a round capital.
- Dormer window – A small attic window projecting from a roof.
- Dormition – The “falling asleep” of the Virgin Mary.
- Drip molding – A projecting molding that sheds water.
- Drum – A cylindrical section often under a dome.
- Early Christian – The first three centuries of Christianity.
- Egg and dart – An ornamental molding alternating darts and egg shapes.
- Eighth day – Symbolic name for heavenly eternity.
- Elevation – A vertical face of a building.
- Entablature – The horizontal beam atop classical columns.
- Façade – An exterior elevation of a building.
- Flamboyant – A flame-like decorative Gothic style.
- Flying buttress – An external structure with a connecting arch for wall support.
- Font – A vessel for baptismal water.
- Gallery – An upper interior level for passage or viewing.
- Garden of Eden – The paradise symbolizing unfallen humanity.
- Gargoyle – A carved waterspout figure on a church.
- Gematria – The conversion of letters into numbers.
- Geometric – The use of mathematical order in Christian symbolism.
- Gothic Revival – 19th–20th century revival of medieval forms.
- Gothic – Medieval variant of classical architecture with pointed arches and vaulting.
- Greek cross – A cross with equal-length arms.
- Green Man – A foliate face ornament.
- Grisaille – Monochromatic painting technique.
- Groin vault – The intersection of two barrel vaults.
- Halo – A circle around a saint’s head indicating holiness.
- Heavenly Jerusalem – Biblical term for heaven as a radiant city.
- High altar – The principal altar in a church.
- Iconostasis – Icon screen dividing nave and sanctuary in Orthodox churches.
- Intercolumniation – The spacing of columns.
- Ionic – A column type with scroll-shaped volutes.
- Jack arch – A flat arch.
- Jamb figure – Sculptures located beside doorways.
- Jordan River – Site of Jesus’s baptism.
- Keystone – The central top stone in an arch.
- Lady chapel – A chapel dedicated to the Virgin Mary.
- Lancet – A narrow pointed window.
- Lantern – A tower allowing light into a building.
- Lectern – A stand for reading or singing.
- Liturgy – The ritual of public worship.
- Load bearing – Structural components that carry weight.
- Lunette – A half-moon shaped space, often over a doorway.
- Mandorla – An almond-shaped radiant body surrounding a holy figure.
- Martyrium – A structure built over a martyr’s tomb.
- Metaphor – A symbol in one form that points to a deeper spiritual meaning.
- Metope – The square area between triglyphs on a Doric frieze.
- Middle Ages – The period from the 4th century to the 15th century in European history.
- Minaret – A slender tower for Islamic calls to prayer.
- Modillions – Ornamental brackets under a cornice.
- Monastery – A building where monks or nuns live and work.
- Monstrance – A vessel used to display the consecrated Eucharistic host.
- Mosaic – A decorative surface of small colored pieces of glass or stone.
- Mullion – A vertical element dividing windows.
- Mural – A painting on a wall.
- Narthex – The entrance or vestibule of a church.
- Nave – The central aisle of a basilica.
- Neo-Byzantine – A revival of Byzantine styles, especially in the 19th and 20th centuries.
- Neo-Classical – A revival of classical styles from Greece and Rome.
- Neo-Gothic – Another term for Gothic Revival.
- Niche – A shallow recess in a wall, often for a statue.
- Nimbus – Another term for halo.
- Northex – An alternate spelling of narthex.
- Notre-Dame – French for “Our Lady,” often referring to the Virgin Mary.
- Octagonal – Eight-sided.
- Oculus – A round window or opening, often in a dome.
- Onion dome – A bulbous, dome-like roof typical of Russian architecture.
- Oratory – A small chapel for private worship.
- Orders – Architectural styles defined by column and entablature proportions.
- Organ – A large musical instrument often used in churches.
- Orthodox Church – The Eastern Christian churches in communion with the Patriarch of Constantinople.
- Palmette – A decorative motif resembling a palm leaf.
- Parapet – A low protective wall along the edge of a roof or balcony.
- Paten – A small plate for the Eucharistic bread.
- Pediment – A triangular gable found over classical structures.
- Pentecost – The day the Holy Spirit descended on the apostles.
- Peristyle – A colonnade surrounding a building or courtyard.
- Pew – A bench with a back, used for seating in churches.
- Pier – A vertical support, often more massive than a column.
- Pilaster – A rectangular column projecting from a wall.
- Pinnacle – A pointed ornament at the top of a buttress or gable.
- Piscina – A basin for washing sacred vessels.
- Plinth – The base of a column or statue.
- Pointed arch – An arch with a pointed apex, typical of Gothic architecture.
- Polyptych – A multi-paneled altarpiece.
- Portico – A porch with a roof supported by columns.
- Post and lintel – A construction method using vertical posts and horizontal beams.
- Presbytery – The area around the altar, reserved for clergy.
- Processional cross – A cross carried at the head of a procession.
- Prothesis – A side chamber of a church for preparing the Eucharist.
- Pulpit – A raised platform for preaching.
- Purlin – A horizontal roof beam.
- Quatrefoil – A decorative element with four lobes.
- Rafter – A sloped beam supporting a roof.
- Reliquary – A container for holy relics.
- Reredos – A decorative screen or wall behind the altar.
- Rib vault – A vault with projecting ribs.
- Rose window – A large circular stained-glass window.
- Rotunda – A round building or room, often under a dome.
- Sacristy – A room for storing vestments and sacred vessels.
- Sanctuary – The sacred area around the altar.
- Sarcophagus – A stone coffin.
- Scallop shell – A symbol of pilgrimage and baptism.
- Screen – A partition separating parts of a church.
- Scroll – A spiraled ornament, especially in Ionic capitals.
- Section – A vertical cut through a structure to show interior features.
- Side aisle – The aisles flanking the nave of a basilica.
- Soffit – The underside of an architectural element.
- Spandrel – The space between arches or between an arch and a rectangular frame.
- Spire – A tapering conical or pyramidal structure on a tower.
- Stained glass – Colored glass used in windows, often depicting biblical scenes.
- Stave church – A wooden church built with post and lintel construction, common in medieval Scandinavia.
- Steeple – A tower on a church, often topped with a spire.
- Stoa – A covered walkway or portico, common in Greek architecture.
- Strainer arch – A horizontal arch across a nave or chancel to counter thrust.
- Stringcourse – A horizontal band of masonry.
- Tabernacle – A secure receptacle for the Eucharist.
- Tempera – A painting medium using egg yolk.
- Templon – A barrier dividing the nave and sanctuary in early churches.
- Thurible – A censer used for burning incense.
- Tomb – A structure for housing the dead.
- Tracery – Stonework elements supporting stained glass.
- Transept – The arms of a cruciform church.
- Transom – A horizontal beam above a door or window.
- Triforium – A shallow gallery above the nave arcade.
- Trumeau – The central pillar supporting a tympanum in a doorway.
- Tympanum – The decorative space over a doorway enclosed by an arch.
- Vault – An arched ceiling or roof.
- Vesica piscis – A pointed oval shape formed by intersecting circles; symbolizes Christ.
- Vestibule – An entryway or small room leading into a larger space.
- Vestments – Liturgical garments worn by clergy.
- Voussoir – A wedge-shaped stone forming part of an arch.
- Westwork – The monumental western front of a church.
- Ziggurat – A stepped temple tower from ancient Mesopotamia.
- Source: Dr. Denis R. McNamara, How to Read Churches: A Crash Course in Ecclesiastical Architecture. Rizzoli, 2011.