axis
3
8.6
- noun
- /ˈæksɪs/
- Specialized
:
segunda vértebra cervical
- vertebral axis
Examples
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Chordomas are rare tumors of notochordal origin that arise along the vertebral axis.
Academic text (2008) -
The axis of the skull allows the head to turn from side to side effortlessly.
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The dentist explained how the axis of the second cervical vertebra is crucial for neck movement.
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By adjusting the axis of the tool, she was able to improve her range of motion while working.
Synonyms
The second bone in the neck that lets the head turn from side to side
Compounds
- Specialized
A fixed straight line that shows where points are on a graph, like the x or y line
- Specialized
The longest straight line through an ellipse that passes through its two special inner points
- Specialized
The shorter diameter of an ellipse that goes through its center and meets the longer axis at right angles
- Specialized
An invisible straight line through a lens or mirror center that light follows without bending
- Specialized
A telescope with a tilted main mirror that sends the image to the side to avoid mirror blocking light
- Specialized
The distance from the center of an ellipse or oval to its farthest edge, equal to half the longest diameter
- Specialized
Half the length from the center to the edge along an ellipse's shortest diameter
Surface Forms
Etymology
Axis comes from the Latin axis, which meant an 'axle' or 'line', the rod a wheel turns on, like the English word axle. The second neck bone acts like that rod and lets your head turn from side to side, so it is called the axis.