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neutrosphere

American

[noo-truh-sfeer, nyoo-] / ˈnu trəˌsfɪər, ˈnju- /

noun

the part of the atmosphere whose constituents are, for the most part, electrically neutral, extending from the earth's surface to the base of the ionosphere.

Etymology

Origin of neutrosphere

neutro- + sphere

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.