Definition of D-region in English:

D-region

Line breaks: D-region

noun

another term for D-layer.
More example sentences
  • Negative ions are a feature of the D-region ionosphere, where they hold a substantial portion of the negative charge.
  • The altitude of the D-region ionosphere is too low for satellite measurements of electron density.

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Word of the day apposite
Pronunciation: ˈapəzɪt
adjective
apt in the circumstances or relation to something