Glossary
- Actus: A linear measure of 120 feet. A square actus was
equal to 14,400 square Roman
feet.
- Ager: Land
- Ager Arcifinius: Unsurveyed land
- Ager Publicus: Public land
Agrimensor: A Roman land surveyor
- Cadaster: A large scale land survey undertaken for purposes of
taxation
- Cardo: A limes parallel to cardo maximus
- Cardo Maximus: One of the two principal axes (usually N-S) of a centuriation
- Centuria: An area of land equal to 100 heredia
- Centuriation: limitatio, or, the division of land in which limites divide the land into regular squares or rectangles
- Century: A square or rectangle of a centuriation often
divided into 100 plots of land
- Decumanus: A limes parallel to decumanus
maximus
- Decumanus Maximus: One of the two principal axes (usually E-W)
of a centuriation
- Forma: Map or plan
- Fines: Boundary or boundaries
- Groma: The Groma was the principal Roman surveying
instrument. It was composed of a vertical staff with horizontal cross pieces mounted on a bracket. Each cross piece had a plumb line and plumb bob hanging vertically. Its main use was to survey str
aight lines, squares, and rectangles.
- Heredium: An area of land equal to 2 iugera or
0.504ha.
- Insula: Island, a city block
- Iter: Roadway, journey
- Iugerum: Two square actus or 28,800 square Roman feet or
.0252 ha.
- Limes, Limites: A road or track or path that forms a division
between neighboring centuries
- Limitatio: Centuriation or the division of land by intersecting
Limites
- Mensor: Measurer
- Pes: Foot, The Roman foot measure is documented in a number of different measures, usually 0.2957m.
- Quintarius: A limes at a multiple of 5 centuries from one of the two principal axes of a centuriation
- Rigor: Straight line boundary without width
- Subsecivum: Unallocated land
- Terminus: Boundary mark
- Territorium: Land which is under the control of a Roman city
- Tetrans: Main intersection
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