| / English Dictionary |
D-LAYER
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves
Synonyms:
D-layer; D region
Classified under:
Nouns denoting spatial position
Instance hypernyms:
part; region (the extended spatial location of something)
Holonyms ("D-layer" is a part of...):
ionosphere (the outer region of the Earth's atmosphere; contains a high concentration of free electrons)
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