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eustasy

or eu·sta·cy

[yoo-stuh-see]

noun, plural eu·sta·sies. Geology.

any uniformly global change of sea level that may reflect a change in the quantity of water in the ocean, or a change in the shape and capacity of the ocean basins.

Origin of eustasy

1945–50; nominalization of eustatic caused by eustasy (< German eustatisch, coined by Austrian geologist Edward Suess (1831–1914); see eu-, static), with -stasy for -stasis stasis, probably on the model of ecstasy

Related formseu·stat·ic

[yoo-stat-ik] /yuˈstæt ɪk/, adjectiveeu·stat·i·cal·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

eustasy in Science

eustasy

[yōō′stə-sē]

A uniform worldwide change in sea level caused especially by fluctuations in the amount of water taken up by continental and polar icecaps, or by a change in the capacity of ocean basins.

Related formseustatic (yōō-stăt′ĭk)

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.