equatorial plane

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Related to celestial sphere: Celestial coordinate system

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 ?
zodiac A band passing around the celestial sphere, centred on the ecliptic, extending about 9[degrees] on either side.
As for those who say that [the earth is at rest and motionless] because of the attraction (jadhb) of the celestial sphere from all directions equally, their claim and opinion are flawed in several respects.
To locate a body on the celestial sphere, one uses a coordinate system analogous to that used on the Earth.
To locate the exact position of Ml and M2 in the sky, we must see at least two stars of known coordinates, to account for the two degrees of freedom on the celestial sphere.
Filled with energy and movement, she is the dominant star in the celestial sphere.
Steeped in the traditional forms, they move one step away from the grittiness of their roots to a celestial sphere where they burn coldly.
The anointment of Rods comes at an interesting moment, since a generational change is taking place in the celestial sphere of Hollywood stardom.
The Ever-Changing Sky: A Guide to the Celestial Sphere by James Kaler
This information from God to privileged humans was mediated through dreams, visions, and auditions while the seer was in a trance (or as we say today, an altered state of consciousness), (5) and when he/she had ascended into the heavens and learned there in the celestial sphere of the universe all the things that the sun, moon, planets, stars and constellations revealed about the terrestrial sphere below and the state of humanity, its past, present, and future.
The argument which maintains that the Earth, as a part of the celestial sphere and as sharing in the same form and movement, moves very little because very near to its centre advances to the following position: therefore the Earth will move, as being a body and not a Centre, and will describe in the same time arcs similar to, but smaller than, the arcs of the celestial circle.
In one, for instance, the celestial sphere is a ball that a child sometimes lets fall on the floor.