(redirected from equators)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to equators: prime meridian


(ē-kwā'tŏr), [TA]
A line encircling a globular body, equidistant at all points from the two poles; the periphery of a plane cutting a sphere at the midpoint of, and at right angles to, its axis.
[Mediev. L. aequator, fr. L. aequo, to make equal]


Etymology: L, aequator, equalizer
an imaginary line encircling a globe, equidistant from the poles, used in anatomical nomenclature to designate such a line on a spherical organ, dividing the surface into two approximately equal parts. Also spelled aequator.


[L. aequator]
A line encircling a round body and equidistant from both poles. equatorial, adjective

equator of cell

The boundary of a plane through which the division of a cell occurs.

equator of crystalline lens

The line that marks the junction of the anterior and posterior surfaces of the crystalline lens. The fibers of the suspensory ligament are attached to it.

equator oculi

An imaginary line encircling the eyeball midway between the anterior and posterior poles.


Imaginary line encircling the eyeball and dividing the eye into a front and back half.
Mentioned in: Retinoblastoma

Patient discussion about equator

Q. how do i determine what is the right weight i need to be? i know there is a way to calculate it, an equation , what are the parameters in it ?

A. I don't mean to burst any bubbles, but BMI is definitely not a good way to determine what weight you should be. If you considered that a body builder or a professional athlete is considered obese under BMI standards then you would know what I mean. Here is an article about it I found on Medical News Today: http://www.medicalnewstoday.com/articles/49991.php

More discussions about equator
References in classic literature ?
The inhabitants are between two and three hundred in number; they are nearly all people of colour, who have been banished for political crimes from the Republic of the Equator, of which Quito is the capital.
Waterhouse informs me, there is nothing in their general appearance which would have led him to imagine that they had come from under the equator.