|  Identification | 
| Official Latin term | luminalis   | 
| Official subsidiary term | luminal   | 
| Unit identifier | TAH:U32 | 
| Unit type | taxonomic | 
| Materiality | non physical entity | 
|  Navigation | 
|  Taxonomic definition | 
| Taxonomic definition | The luminal  is a direction term [nomen positionis  ] which specifies any position relative to the interior space of a tubular structure. | 
|  Taxonomy | 
| Date: 06.05.2022 |