Dictionary.com
Thesaurus.com
Showing results for D layer. Search instead for Inlayer.

D layer

American  

noun

  1. the lowest region of the ionosphere, characterized by mounting electron and ion density: exists, during the day only, from about 43 to 50 miles (70 to 80 km) altitude.

D layer Scientific  

  1. See D region

Etymology

Origin of D layer

First recorded in 1930–35

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.