Definition of D region

1. Noun. The lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves.

Exact synonyms: D-layer
Group relationships: Ionosphere
Generic synonyms: Part, Region

Lexicographical Neighbors of D Region

DXM
DYC
DYK
DYSTIAS
DYSWIDT
DZ
D and C
D antigen
D cell
D enzyme
D gene segment
D major
D mannitol
D mannose
D minor
D region (current term)
D valve
D wave
Da
DaCosta's syndrome
Da Fano
Da Fano's stain
Daae's disease
Daba
Dabb
Dabbs
Dabinett
Daboecia
Daboecia cantabrica
Dabson

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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