equatorial plane


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e·qua·to·ri·al plane

in metaphase of mitosis, the plane that touches all of the centromeres and their spindle attachments.

equatorial plane

[ēk′wətôr′ē·əl]
Etymology: L, aequare, to make alike; Fr, flat + vessel
the plane at the center of the spindle in which the chromosomes are arranged during metaphase of mitosis and meiosis.

e·qua·to·ri·al plane

(ek'wă-tōr'ē-ăl plān)
In metaphase of mitosis, the plane that touches all the centromeres and their spindle attachments.
References in periodicals archive ?
In the same way, the axial divergence should be measured by scanning the primary beam perpendicularly to the diffraction plane, a motion not attainable even on a 4-circle diffractometer, since source and detector cannot move out of the equatorial plane.
When it is established that the micrograph shows two spherulites, one can see that the voided areas are located essentially in the meridional regions of the spherulites and, to a lesser degree, in the equatorial plane at the edges of the spherulite.
But sunlight has been creeping up Titan's northern hemisphere since August 2009, when the Sun's light crossed the equatorial plane at equinox.
Such a stunning and mesmerizing view of the hurricane-like storm at the north pole is only possible because Cassini is on a sportier course, with orbits tilted to loop the spacecraft above and below Saturn's equatorial plane," said Scott Edgington, Cassini deputy project scientist at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif.
But the Earth's shape is roughly an ellipsoid, a fact that causes an extra complication: the angle of incidence of the lunar shadow with regard to the equatorial plane.
Just as scientists had planned, the craft rose out of the equatorial plane and for the next 5 months viewed the rings from above and below the planet's equator.
Each of the tires comprises, in each sidewall, at least one additional layer of reinforcing elements forming with the circumferential direction an angle of between 20[degrees] and 60[degrees], the orientation of the reinforcing elements of the additional layer in a sidewall being symmetrical to the orientation of the reinforcing elements of the additional layer in the other sidewall in relation to the equatorial plane, the angle formed by the plane comprising a reinforcing element of an additional layer with a radial plane comprising the radially inner end of said reinforcing element being oriented in the direction of rotation of the mounted assembly corresponding to the forward movement of the vehicle in the rear tire and in the opposite direction in the front tire.
Washington, July 11 ( ANI ): During a recent excursion out of Saturn's equatorial plane, NASA's Cassini spacecraft has detected a concentration of high-altitude haze and a vortex materializing at the south pole of planet's largest moon Titan, signs that the seasons are turning on Saturn's largest moon
The emission was concentrated over a relatively small portion of the exosphere, with most of the emission occurring close to the equatorial plane.
Considering motion confined to the equatorial plane of the homogeneous spherical body, [theta] = [pi]/2 and hence d[theta] = 0.