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TeachMeFinance.com - explain oscillation oscillation The term 'oscillation' as it applies to the area of the weather can be defined as ' A shift in position of various high and low pressure systems that in climate terms is usually defined as an index (i.e., a single numerically-derived number, that represents the distribution of temperature and pressure over a wide ocean area, such as the El Niño-Southern Oscillation, North Atlantic Oscillation, and Pacific Decadal Oscillation)'. The term 'oscillation' as it applies to the area of coastlines can be defined as ' a periodic motion backward and forward. to vibrate or vary above and below a mean value'. Previous 5 Terms: orthopterology oryctology oryx oscheal oscheolith Next 5 Terms: oscillograph oscillometer oscilloscope oscinine oscular About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.