equatorial-plane

equatorial plane

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

Origin:
1890–95

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American Heritage
Medical Dictionary

equatorial plane e·qua·to·ri·al plane (ē'kwə-tôr'ē-əl, ěk'wə-)
n.
The plane that contains all of the centromeres and their spindle attachments during metaphase of mitosis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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