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D layer Definition

D layer

noun

the lowest area of the ionosphere, having increased ion density and existing only in the daytime: it begins at an altitude of about 70 km (c. 43 mi) and merges with the E layer

Browse dictionary entries near D layer

  1. ‹ d'Indy
  2. ‹ d'Iberville
  3. ‹ Díaz del Castillo, Bernal
  4. ‹ Díaz
  5. ‹ D-horizon
  6. ‹ développé
  7. ‹ détente
  8. ‹ D'Entrecasteaux Islands
  9. ‹ démodé
  10. ‹ démarche
  1. D-mark ›
  2. D'Oyly Carte ›
  3. d- ›
  4. D region ›
  5. D-ring ›
  6. -'d ›
  7. d.t.'s ›
  8. D-to-A ›
  9. Dürer ›
  10. Dürrenmatt ›