E region
noun
- 1
a region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length
Also useful for “E region”:Crossword— Multi-word entries show up in clues
a region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length
Also useful for “E region”:Crossword— Multi-word entries show up in clues