ellipticity
/ɪˌlɪpˈtɪsɪti/
noun
- The degree to which something is shaped like an ellipse (an oval) rather than a perfect circle.
- The ellipticity of Earth's orbit is very small, so it is almost circular.
- The planet's high ellipticity causes its seasons to vary dramatically.
- Engineers measure the ellipticity of the metal ring to ensure it fits properly.
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