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Situated, like the earth's equator, equidistant from either end.


/equa·to·ri·al/ (e″kwah-tor´e-al)
1. pertaining to an equator.
2. occurring at the same distance from each extremity of an axis.


[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.


the circle which divides the spherical object into two equal halves.

equatorial region
the middle piece; said of spindle muscle fibers.
References in periodicals archive ?
There is no evidence of cell plate deposition or wall ingrowths in the equatorial region of first meiosis.
But, similar phenomena have been observed now in their equatorial regions in the vertical, cyclical, downwards-moving patterns of alternating temperatures and wind systems, which are cyclic processes that modify the atmosphere over the equatorial region.
Fresh attacks carried out by the notorious Ugandan rebel group have uprooted thousands of people and spreading panic in Western Equatorial region, forcing the United Nations to suspend its humanitarian work in Ezo County, the world body's refugee arm said in its website.
Evidence indicates that Mars' spin axis has wobbled significantly in the last several million years, periodically cooling the equatorial region and warming the poles as they received more sunlight.
correctly answered that La Nina is the Spanish name for the weather condition characterized by unusually cold ocean temperatures in the equatorial region of the eastern Pacific Ocean.
Modeling how air flows on these planets - which have atmospheres - the researchers found "the major air flow may lead from the poles to the equator, systematically trapping the ozone in the equatorial region.
A new close-up image of an equatorial region near the base of Pluto's bright heart-shaped feature shows mountains rising as high as 3,500 meters from the surrounding terrain.
Clouds in the equatorial region between about 6 to 19 miles (10 to 30 kilometers) above the surface of Mars absorb infrared light emitted from the surface during daytime.
His important papers in the professional journal Icarus included not only regular reports, but also the first proof of the internal circulation of the Great Red Spot, the rediscovery of the superfast North Temperate jet stream (both with Dr Bradford Smith), and the history of a pair of exceptionally great and long-lived plumes in the equatorial region (with Dr Reta Beebe).
The rebel group has most recently displaced thousands of civilians in DR Congo seeking refuge in neighboring southern Sudan's Western Equatorial region -- at least 40,000 IDPs and 15,000 refugee have been registered according to government records, since LRA launched retaliatory attacks.
That allows it to be more laden with instruments to study the equatorial region where scientists hope it will safely set down.
In the equatorial region of the Atlantic, the North Brazil Current follows the Brazilian coast northwestward before turning sharply to the right between 5 [degrees] N and 10 [degrees] N to cross the Atlantic as the North Equatorial Countercurrent.