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subsidence

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sub⋅side

[suhb-sahyd]
–verb (used without object), -sid⋅ed, -sid⋅ing.
1. to sink to a low or lower level.
2. to become quiet, less active, or less violent; abate: The laughter subsided.
3. to sink or fall to the bottom; settle; precipitate: to cause coffee grounds to subside.

Origin:
1640–50; < L subsīdere, equiv. to sub- sub- + sīdere to sit, settle; akin to sedēre to be seated; see sit 1


sub⋅sid⋅ence [suhb-sahyd-ns, suhb-si-dns] , noun
sub⋅sid⋅er, noun


1. decline, descend, settle. 2. diminish, lessen, wane, ebb.


1. rise. 2. increase.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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sub·side   (səb-sīd')   
intr.v.   sub·sid·ed, sub·sid·ing, sub·sides
  1. To sink to a lower or normal level.

  2. To sink or settle down, as into a sofa.

  3. To sink to the bottom, as a sediment.

  4. To become less agitated or active; abate. See Synonyms at decrease.


[Latin subsīdere : sub-, sub- + sīdere, to settle; see sed- in Indo-European roots.]
sub·si'dence (səb-sīd'ns, sŭb'sĭ-dns) n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

subside 
1681, "to sink to the bottom," from L. subsidere "settle, sink, sit down or remain," from sub "down" + sidere "to settle," related to sedere (see sit). Meaning "to sink to a lower level, be reduced" is from 1706.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: sub·side
Pronunciation: s&b-'sId
Function: intransitive verb
Inflected Forms: sub·sid·ed;sub·sid·ing
: to lessen in severity : become diminished subsided> —sub·si·dence /s&b-'sId-&n(t)s, 's&b-s&d-&n(t)s/ noun
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

subsidence sub·si·dence (səb-sīd'ns, sŭb'sĭ-dns)
n.
Sinking or settling in a bone, as of a prosthetic component of a total joint implant.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

subsidence

sinking of the Earth's surface in response to geologic or man-induced causes. When subsidence occurs in great belts, providing troughs for the accumulation of sediments, the resulting features are termed geosynclines; nonlinear subsidence produces basins and irregular depressions. Subsurface solution during cave formation may lead to a series of subsidence features at the ground surface, which, collectively, are termed karst (q.v.) topography. Similar effects can be produced by mining or by the extraction of water or petroleum by means of wells. Subsidence also has been produced by the irrigation of virgin areas of alluvial deposits; initial water penetration causes reorientation of constituent particles and a consequent compaction of sediment in the wetted areas. See also geosyncline.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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