单词 | isostasy |
释义 | isostasyor i·sos·ta·cy[ ahy-sos-tuh-see ] / aɪˈsɒs tə si / nounGeology. the equilibrium of the earth's crust, a condition in which the forces tending to elevate balance those tending to depress. the state in which pressures from every side are equal. Origin of isostasy1885–90; iso- + -stasy<Greek -stasia;see stasis, -y3 Words nearby isostasyisosorbide dinitrate, isospin, isospondylous, Isospora, isosporiasis, isostasy, isostatic, isostemonous, isostere, isosteric, isosterism Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for isostasyisostasy / (aɪˈsɒstəsɪ) / nounthe state of balance, or equilibrium, which sections of the earth's lithosphere (whether continental or oceanic) are thought ultimately to achieve when the vertical forces upon them remain unchanged. The lithosphere floats upon the semifluid asthenosphere below. If a section of lithosphere is loaded, as by ice, it will slowly subside to a new equilibrium position; if a section of lithosphere is reduced in mass, as by erosion, it will slowly rise to a new equilibrium position Derived forms of isostasyisostatic (ˌaɪsəʊˈstætɪk), adjectiveWord Origin for isostasyC19: iso- + -stasy, from Greek stasis a standing Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for isostasyisostasy [ ī-sŏs′tə-sē ] Equilibrium in the Earth's crust, in which an elevated part in one area is counterbalanced by a depressed part in another. Isostasy exists because the Earth's crust is relatively light compared to the denser mantle over which it lies, and therefore behaves as if it is floating. Areas of the Earth's crust rise or subside to accommodate added load (as from a glacier) or diminished load (as from erosion), so that the forces that elevate landmasses balance the forces that depress them. Other words from isostasyisostatic adjective (ī′sō-stăt′ĭk)The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
随便看 |
|
英语词典包含192737条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。