outermost

American  

[au-ter-mohst, -muhst] / ˈaʊ tərˌmoʊst, -məst /

adjective

1. farthest out; remotest from the interior or center.

   the outermost limits.

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outermost British  

/ ˈaʊtəˌməʊst /

adjective

1. furthest from the centre or middle; outmost

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Etymology

Origin of outermost

Middle English word dating back to 1350–1400; see origin at outer, -most

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Example Sentences

See Examples For:

outermost

Far away from the core is the Sun's outermost layer or corona where the temperature is about 2 million C - it can sometimes go up to 40 million C.

From BBC ● Aug. 14, 2026

Next week, CEA scientists will focus on the Sun's corona, the outermost layer of its atmosphere.

From Barron's ● Aug. 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

Instead, some inner layers circle the black hole, while the outermost layers are pushed outward.

From Science Daily ● Feb. 14, 2026

Or was the outermost sphere the end of the universe?

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

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