(By analogy with "ef="module.php?name=Lexikon&file=search&eid=1&query=pixel">pixel") Volumeelement. The smallest distinguishable box-shaped part of a three-dimensional space. A particular voxel will be identified by the x, y and z coordinates of one of its eight corners, or perhaps its centre. The term is used in three dimensional modelling. (1995-03-10)