3-dimensional
3-dimensional (3D)
3-dimensional or 3D (pronounced: "three-dimensional") refers to objects or images that have or appear to have depth, height, and width. The term is often used in the fields of computer graphics, virtual reality, medical imaging, and geometry.
Etymology
The term "3-dimensional" comes from the Latin dimensionem meaning "a measure", and the prefix tri- meaning "three". It was first used in the mid-19th century to describe objects that have depth in addition to height and width.
Related Terms
- 2-dimensional: Refers to objects or images that only have height and width.
- 4-dimensional: Refers to theoretical objects or spaces that have one additional dimension beyond the three commonly observed in the physical universe.
- Dimension: A measurable extent of some kind, such as length, width, depth, or height.
- Spatial: Pertaining to space or the relationship of objects within space.
- Volume (geometry): The amount of space that a 3-dimensional object or shape occupies.
Usage in Medical Field
In the medical field, 3-dimensional imaging techniques such as Computed Tomography (CT) scans, Magnetic Resonance Imaging (MRI) and 3D ultrasound are used to create detailed images of the inside of the body. These images can be used for diagnostic purposes, surgical planning, and treatment evaluation.
See Also
External links
- Medical encyclopedia article on 3-dimensional
- Wikipedia's article - 3-dimensional
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