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Definition of D region
1. Noun. The lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves.
Lexicographical Neighbors of D Region
Literary usage of D region
Below you will find example usage of this term as found in modern and/or classical literature:
1. Philosophical Transactions by Royal Society (Great Britain) (1782)
"Written by the Count dc Gioeni, an Inhabitant of the %d Region of Mount Etna--*
communicated by Sir William Hamilton, KBFR S, See pi Volat per ^Mare magnum ..."
2. The Encyclopædia Britannica: A Dictionary of Arts, Sciences, Literature and by Hugh Chisholm (1911)
"A, Shows two conditions with B, Condition at foremost region free ^ill-axis, C,
Hind region of foot in Ano- in Anodonta. \donta. D, Region altogether ..."
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