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res ipsa loquitur

[reez ip-suh loh-kwi-ter, lok-wi-, reys] /ˈriz ˈɪp sə ˈloʊ kwɪ tər, ˈlɒk wɪ-, ˈreɪs/
noun, Law.
the rule that an injury is due to the defendant's negligence when that which caused it was under his or her control or management and the injury would not have happened had proper management been observed.
Origin of res ipsa loquitur
First recorded in 1650-60, res ipsa loquitur is from the Latin word rēs ipsa loquitur literally, the thing itself speaks Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for res ipsa loquitur

res ipsa loquitur

/reɪs ˌɪpsɑː ˈlɒkwɪtə/
(law) the thing or matter speaks for itself
Word Origin
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
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Word Origin and History for res ipsa loquitur

Latin, "the thing speaks for itself."

Online Etymology Dictionary, © 2010 Douglas Harper
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