Definition of D region
: the lowest part of the ionosphere occurring approximately between 30 and 55 miles (50 and 90 kilometers) above the surface of the earth
- Trending Now: More Trending:
- hogwash probity sequacious inadmissible oligarch, pejorative
- ALL
What's Trending Now
More Trending Words
First Known Use of d region
1930
Seen and Heard
What made you want to look up D region? Please tell us where you read or heard it (including the quote, if possible).
