Found 2 items, similar to D-layer.
English → English (WordNet) Definition: D-layer D-layer n : the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves [syn: D region]
English → English (gcide) Definition: D-layer D-layer \D-layer\ n. the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves. Syn: D region. [WordNet 1.5]