vox·​el ˈväk-səl How to pronounce voxel (audio)
: any of the discrete elements comprising a three-dimensional entity (such as an image produced by magnetic resonance imaging)
MRI produces the best resolution of any existing scanning technology, imaging down to a 2-millimetre "voxel" (the 3D equivalent of a pixel).Clint Witchalls
To process the MRI data, a computer overlaid on Pickens' brain a virtual three-dimensional grid of 50,000 cubes called voxels (a word hinting at volume and pixels).Christopher Helman

Examples of voxel in a Sentence

Recent Examples on the Web The improvements allow an fMRI to image voxels—the 3D equivalent of pixels—that are less than half a millimeter on each side. IEEE Spectrum, 12 Dec. 2023 Reconstructing the slices produced more than 700 million 3-D cells, called voxels, that were evaluated and programmatically filtered, based on density, to isolate the bones and lungs. Hang Do Thi Duc, New York Times, 31 May 2023 To compensate, the new technique uses a single pulse to solidify each voxel. IEEE Spectrum, 7 Apr. 2023 This enables precise fabrication of items with voxels—the 3D equivalent of pixels—only a few dozen nanometers in size. IEEE Spectrum, 7 Apr. 2023 However, this strategy typically still achieves printing speeds of only about 10,000 voxels per second and less than 0.1 cubic millimeters per hour. IEEE Spectrum, 7 Apr. 2023 Because of this, an uncorrected threshold of P<0.001 for the peak voxel within ROIs was set, namely the hippocampus, amygdala and entorhinal cortex. Neuroskeptic, Discover Magazine, 14 Aug. 2017 Coding and analyzing the data in each voxel helped researchers visualize which regions of the brain process certain kinds of words. Jennifer Walter, Discover Magazine, 22 Aug. 2019 Mirrors focus the beam into position, arranging each individual voxel (the term for 3-D pixels) at specific lateral (X,Y) and axial (Z) points. Jonathon Keats, Discover Magazine, 29 Nov. 2015

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'voxel.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1976, in the meaning defined above

Time Traveler
The first known use of voxel was in 1976

Cite this Entry

“Voxel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/voxel. Accessed 19 Apr. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!