outermost
Americanadjective
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farthest out; remotest from the interior or center.
the outermost limits.
adjective
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furthest from the centre or middle; outmost
Etymology
Origin of outermost
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The astronauts will then have the chance to study the solar corona, the outermost layer of the Sun's atmosphere, which will become visible as a sort of glowing halo.
From Barron's • Apr. 5, 2026
Past conflicts—due largely to a considerable lag between U.S. doctrine and technology—began with the outermost defensive ring and painfully worked toward the innermost ring of the capital, he wrote.
From The Wall Street Journal • Mar. 30, 2026
That’s when the star goes supernova, which we can detect as soon as the bounced off material breaks through the star's outermost layer — we call this the shock breakout.
From Space Scoop • Nov. 28, 2025
Unlike the water that falls from clouds on Earth, solar rain takes place in the Sun's corona, the outermost layer made of intensely hot plasma.
From Science Daily • Oct. 15, 2025
The outermost sphere carried the so-called fixed stars, which always stay in the same positions relative to each other but which rotate together across the sky.
From "A Brief History of Time: And Other Essays" by Stephen Hawking
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.