| 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 |
