transition region

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noun Astronomy.

a thin and very irregular layer of the sun's atmosphere that separates the hot corona from the much cooler chromosphere.

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Words nearby transition region

transition element, transition gyrus, transition mutation, transition point, transition probability, transition region, transition team, transition temperature, transitive, transitive verb, transitman

How to use transition region in a sentence

And that may well be what is happening in the Barnett Shale region around, yes, Dallas and Irving.
26 Earthquakes Later, Fracking’s Smoking Gun Is in Texas|James Joiner|January 7, 2015|DAILY BEAST
A second document was titled: “Gambia Reborn: A Charter for Transition from Dictatorship to Democracy and Development.”
The Shadowy U.S. Veteran Who Tried to Overthrow a Country|Jacob Siegel|January 6, 2015|DAILY BEAST
Instead, spa hotels filled up with over 30,000 refugees from the war-troubled Donbas region of eastern Ukraine.
Is Putin Turning to Terrorism in Ukraine?|Anna Nemtsova|January 6, 2015|DAILY BEAST
In doing so he exposed the failure of other airlines in the region to see the huge pent-up demand for cheap travel.
Annoying Airport Delays Might Prevent You From Becoming the Next AirAsia 8501|Clive Irving|January 6, 2015|DAILY BEAST

The region is marketed for visitors as “Aryan Valley,” and many citizens have taken to tacking on “Aryan” to their last names.
The Himalayas’ Hidden Aryans|Nina Strochlic|January 3, 2015|DAILY BEAST
Within the past thirty years civilization has rapidly taken possession of this lovely region.
Among the Sioux|R. J. Creswell
Nowhere can be found a region capable of supporting a larger population to the square mile than Lombardy.
Glances at Europe|Horace Greeley
From that region they issue to inflict diseases, especially blindness and deafness.
Solomon and Solomonic Literature|Moncure Daniel Conway
At that time, the postage on letters from that region was very high, sometimes as much as fifty or sixty cents, or even a dollar.
The Boarded-Up House|Augusta Huiell Seaman
I should judge that a peck of corn is about the average product of a day's work through all this region.
Glances at Europe|Horace Greeley

Scientific definitions for transition region

transition region

The area in a seed-bearing plant where the vascular tissue of the root changes into the vascular tissue of the stem. In eudicotyledons, the roots have a solid cylinder of vascular tissue surrounded by cortex. The vascular tissues gradually branch apart and reorient themselves in the stem around a central pith.

The thin layer of the solar atmosphere that separates the chromosphere from the corona. In the transition region, temperatures increase from a relatively cool 20,000°K in the chromosphere to the 1,000,000°K and higher temperatures of the corona. Transition region chemistry involves the ionization of hydrogen and other elements; the light produced by this region comes from ionized forms of carbon, oxygen, and silicon.