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equatorial plane

American  

noun

Astronomy.
  1. the plane passing through the equator of the earth or another celestial body.


Etymology

Origin of equatorial plane

First recorded in 1890–95

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In this case, there are two possible arrangements at the equatorial plane in metaphase I, as shown in the upper cell of each panel.

From Textbooks • Apr. 25, 2013

During metaphase, all of the chromosomes are aligned in a plane called the metaphase plate, or the equatorial plane, midway between the two poles of the cell.

From Textbooks • Apr. 25, 2013

During anaphase, the sister chromatids at the equatorial plane are split apart at the centromere.

From Textbooks • Apr. 25, 2013

It lies in Pluto's equatorial plane and circles the planet once every 6 days 9 hr. and 17 min.�an interval identical to Pluto's own period of rotation.

From Time Magazine Archive

When a charged particle bounces from one magnetic pole to the other, it must cross the equatorial plane of Saturn.

From "Cosmos" by Carl Sagan

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