d region meaning

  "d region" in a sentence
  • Noun: D region
    1. The lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves
      - D-layer

    Derived forms: D regions

    Type of: part, region

    Part of: ionosphere

    Encyclopedia: D region


  1. Sky-wave ionospheric propagation is not possible during the day because of the attenuation of the signals on these frequencies caused by the D region in the ionosphere.
  2. When meiosis tries to do recombination between the strands at the C-D region, you end up with some number of A B C D E B A and C D E chromosomes, which tend not to be viable.

Related Words

  1. d orn isomer ng nitroarginine methyl ester meaning
  2. d pen5 enkephalin d pen2 meaning
  3. d penicillamine meaning
  4. d phase meaning
  5. d propoxyphene meaning
  6. d ribose meaning
  7. d scope meaning
  8. d service meaning
  9. d sparteine meaning
  10. d thyroxine meaning
PC Version