isos·​ta·​sy ī-ˈsä-stə-sē How to pronounce isostasy (audio)
: general equilibrium in the earth's crust maintained by a yielding flow of rock material beneath the surface under gravitative stress
: the quality or state of being subjected to equal pressure from every side
isostatic adjective
isostatically adverb

Word History


International Scientific Vocabulary is- + Greek -stasia condition of standing, from histanai to cause to stand — more at stand

First Known Use

1889, in the meaning defined at sense 1

Time Traveler
The first known use of isostasy was in 1889

Dictionary Entries Near isostasy

Cite this Entry

“Isostasy.” Dictionary, Merriam-Webster, Accessed 5 Jun. 2023.

Kids Definition


isos·​ta·​sy ī-ˈsäs-tə-sē How to pronounce isostasy (audio)
: the state of balance that exists between the earth's crust and the denser rock material beneath
isostatic adjective

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