Search Result for "e region":
Wordnet 3.0

NOUN (1)

1. a region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length;
[syn: Heaviside layer, Kennelly-Heaviside layer, E layer, E region]



WordNet (r) 3.0 (2006):

E region
    n 1: a region of the ionosphere (from 50 to 90 miles up) that
         reflects radio waves of medium length [syn: Heaviside
         layer, Kennelly-Heaviside layer, E layer, E region]