voxel vox·el (vŏk'səl)
The basic unit of computed tomography reconstruction, represented as a pixel in a computed tomography image display.
(By analogy with "pixel") Volume element.
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.