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Glossary of Roman Terms

abutment

masonry platform or earth embankment supporting the central structure of a bridge

agger

cambered embankment-mound carrying a Roman road

ala

unit of cavalry in the Roman auxiliary army

ambulatory

covered portico surrounding the inner shrine of a temple

apodyterium

undressing room in a bath-suite

architrave

the horizontal member above two columns (piers, etc.), spanning the interval between them

bailey

fortified enclosure in a medieval castle

ballista

artillery- weapon discharging arrows and stone balls

basilica

town hall

berm

in military defences, the level space between two features (e.g. ditch and rampart)

bonding-course

bands of brickwork (or occasionally stone slabs) which alternate with wider sections of regular stonework; they normally run through the entire thickness of the wall, presumably to give cohesion and stability to the mortared rubble-core; they were also useful as levelling courses during construction

breastwork

the vertical timber-work built on top of the earth rampart of a fort to provide screening for the sentry

caldarium

hot room (moist heat) in a bath-suite

cella

inner shrine of a temple

centuria

unit of 80 legionary soldiers, commanded by a centurion

chi- rho

Christian symbol composed of the first two letters of the Greek name for Christ (Xp-Cros); see

civitas

tribal unit

clavicula

in a Roman camp, curved extension of rampart (and ditch) protecting a gateway

cohort

unit of infantry soldiers, legionary or auxiliary

colonia

settlement of retired legionaries; for York a title of honour

crop-mark

colour-differentiation in standing crops or vegetation (best seen from the air), indicating the presence of buried ancient features

cross-hall

covered assembly- area in the headquarters building of a fort

culvert

drainage- channel

curtain

wall of fortification

dado

continuous border round the lower part of a wall decorated with painted plaster

field-system

regular pattern of rectangular fields attached to an ancient farming settlement

flue-arch

underfloor arch in a hypocaust allowing hot air to pass from furnace to room, or from one heated room to another

flue-tiles

open-ended, box-shaped tiles built in the thickness of the walls of a room heated by hypocaust

frieze

horizontal band above an architrave, sometimes carved with sculpture

frigidarium

cold room in a bath-suite

graffito

writing scratched on tile, pottery, plaster, etc.

guilloche

on mosaics, decorative feature consisting of two or more intertwining bands herringbone. descriptive of a style of construction in which stonework or tiles are set in zig-zag pattern

hypocaust

Roman method of central heating: The floor was raised, usually on pilae, and flue-tiles acting as 'chimneys' were built in the thickness of the walls. The draught created by these flues enabled hot air to be drawn from the stoke-hole on the right in fig 4), where brushwood or other fuel was burnt, to circulate under the floor, and to escape up the wall-flues to the air outside. In the channelled type of hypocaust, the hot air circulated not around pilae but through narrow channels built under the floor

imbrex

semi-circular roofing-tile, linking two flat tiles (tegulae)

in situ

Latin expression meaning "in its original position"

jamb

side-post of a doorway or window

laconicum

hot room (dry heat) in a bath-suite

latrine

Lavatory

leet

Error? Aqueduct

Channel

Lintel

wooden beam or stone slab lying horizontally above a doorway (or window)

mansio

an inn, especially for government officials

monogram

set of letters combined into one (used of Chi-Rho)

mosaic

floor composed of pieces of coloured tesserae to form geometric or figured designs

ERROR of set point at which the thickness of a wall is reduced, forming a 'step' in the structure

palaestra

exercise-yard of a public bath-house, in Britain sometimes covered

parapet

top of a Roman fortification consisting of a wallwalk and battlements

pediment

triangular gabled end of a roof (usually used of temples)

pilae

pillars of brick (or stone) supporting the floor of a room with a hypocaust

pilaster

column or pillar incorporated in, but projecting from, a wall

piscina

swimming-bath in a public bath- house

plinth

projecting course at the foot of a wall; also used of a base, e.g. for an altar

podium

raised platform (especially used of temples)

portal

doorway or carriageway, especially of a fort-gateway

post-hole

hole dug to receive a wooden upright

postern

minor gate or door in a late Roman town- or fortwall

posting-station

small town on a main road, where travelling officials could find an inn (mansio)

principia

headquarters building of a Roman fort

procurator

government financial administrator

putlog holes

row(s) of square or rectangular holes in a masonry wall which held horizontal scaffolding timbers during construction; on completion of the work they were plugged with loose material, since fallen out

relieving arch

arch built as part of a solid wall to take the weight of the construction above, and to divert it from weak points such as doors and windows lower down revetment. facing of one material given to a structure of a different material (eg stone wall given to an earth bank) roundel. circular panel containing a design (eg on mosaics)

sacellum

shrine in a fort's headquarters building

samian

high-quality, red-coated pottery, imported from the continent (mainly from France)

sarcophagus

coffin of stone or lead

Saxon Shore

coast of SE England exposed to Saxon pirate raids

sleeper wall

low wall supporting a raised floor, especially in a granary

springer

the voussoir which rests on the cap above a jamb and marks the beginning of an arch stoke-hole. furnace-area for a hypocaust

street- grid

regular pattern of streets crossing at right-angles

sudatorium

hot room (dry heat) in a bath-suite

tepidarium

warm room (moist heat) in a bath-suite

tessellated

composed of tesserae, usually of a floor without decoration tesserae small cubes of coloured stone, glass or tile, of which a mosaic or tessellated floor is composed

titulum

short detached stretch of rampart (and ditch) protecting the gateway of a marching camp

tribunal

platform for commanding officer in principia, or on a parade-ground

triclinium

dining-room

vexillatio

detachment of a legion (normally 1,000 men)

vexillalion fortress

campaign base for legionaries and auxiliaries

via decumana

road in a fort running from back of principia to back gate

via principalis

road in a fort linking the gates in the long sides and passing in front of the principia

vicus

small civilian settlement, especially one outside a fort

voussoir

wedge-shaped stone forming one of the units of an arch

wall-walk

level platform for the sentry on top of a fortification (see parapet)

wattle-and-daub

wall-construction consisting of wickerwork plastered with mud

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