1. A region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length
   - Heaviside layer, Kennelly-Heaviside layer, E layer

Type of: part, region

Part of: ionosphere

Encyclopedia: E region

• scratching
• scratchpad
• scratchy
• scraunch
• scrawl
• scrawler
• scrawniness
• scrawny
• screak
• screakily
• screaky
• scream
• screamer
• screaming
• screaming abdabs
• screaming meemies
• screamingly
• scree
• screech
• screech owl
• screecher
• screeching
• screechy
• screed
• screen