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.
Also, eu⋅sta⋅cy.
Origin: 1945–50; nominalization of eustatic caused by eustasy (< G eustatisch, coined by Austrian geologist Edward Suess (1831–1914); see eu-, static), with -stasy for -stasisstasis, prob. on the model of ecstasy