出典:Wiktionary
Latin subsidens, subsidentis, present participle of subsidere.
subsidence (countable かつ uncountable, 複数形 subsidences)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/09 10:50 UTC 版)
Subsidence is the motion of a surface (usually, the Earth's surface) as it shifts downward relative to a datum such as sea-level. The opposite of subsidence is uplift, which results in an increase in elevation. Ground subsidence is of concern to geologists, geotechnical engineers and surveyors.