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Encke's division

American

noun

Astronomy.

a dark region within the outer major ring of Saturn.

Etymology

Origin of Encke's division

see origin at Encke's comet

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.