HyperDic: d-layer

English > 1 sense of the word D-layer:
NOUNlocationD-layer, D regionthe lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves
English > D-layer: 1 sense > noun 1, location
MeaningThe lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves.
SynonymD region
Instance ofregion, partThe extended spatial location of something
Part ofionosphereThe outer region of the Earth's atmosphere

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