Antonyms for umbral

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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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Outside the umbral cone is that of the penumbra, within which the sun is partially hidden by the moon.

RELATED WORDS AND SYNONYMS FOR UMBRAL

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.