voxel

n. dimension of 3D volume that is parallel to a pixel (used in dimensional modelling)

A voxel (a portmanteau of the words volumetric and pixel) is a volume element, representing a value on a regular grid in  three dimensional space. This is analogous to a pixel, which represents 2D image data. Voxels are frequently used in the visualisation and analysis of medical and scientific data. Some true 3D displays use voxels to describe their resolution. For example, a display might be able to show 512×512×512 voxels.
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n. voxel, dimension of 3D volume that is parrallel to a pixel (used in dimensional modelling)

<jargon> (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.
(1995-03-10)