Oblate

Oblate, primarily used in geometry and astronomy, describes a three-dimensional object, usually a spheroid, that is flattened at the poles and bulging at the equator. This shape results from rotational forces, such as the centrifugal force generated by a spinning planet. The term emphasizes the distortion from a perfect sphere. It is often used when referring to celestial bodies like planets and moons, but it can also describe other forms. The degree of flattening is quantified by its oblateness. It highlights a deviation from perfect spherical symmetry caused by axial rotation and deformation. Think of it as being squashed on its poles and widened around the middle.

Oblate meaning with examples

• The Earth is an oblate spheroid because the spinning motion creates centrifugal force that pushes the equatorial region outward. This bulge, barely perceptible from space, is a testament to the dynamic forces at play within a rotating celestial body. This slight flattening at the poles is a key characteristic of planetary shapes.
• Astronomers used advanced calculations to determine that Jupiter, a gas giant, has a significant oblateness due to its incredibly fast rotation. This rapid spin causes the planet's equatorial diameter to be visibly larger than its polar diameter, a clear indication of the centrifugal force at work.
• The team observed a newly discovered exoplanet; its data suggested an oblate shape likely due to a very short orbital period and rapid rotation. They suspected the planet's fast spin resulted in measurable equatorial bulging, providing clues regarding its internal composition.
• When modeling the gravitational field of a rapidly rotating star, scientists must account for its oblateness. Ignoring the non-spherical shape can lead to significant errors in the computations. The degree of flattening influences the distribution of mass.
• The model of the rapidly spinning object, built on the findings of previous observations, allowed the team to simulate the changing shape over time, demonstrating how the oblateness shifted slightly depending on its position. This allowed for greater clarity in their predictions.

Oblate Synonyms

bulging (at equator), depressed (at poles), flattened, spheroidal

Oblate Antonyms

ellipsoidal, prolate, spherical

Oblate Crossword Answers

13 Letters

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