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nonequivalence

British  
/ ˌnɒnɪˈkwɪvələns /

noun

  1. the relationship of being unequal or incomparable

  2. logic

    1. the relation between two statements only one of which can be true in any circumstances

    2. a function of two statements that takes the value true only when one but not both of its arguments is true

    3. a compound statement asserting that just one of its components is true

"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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This results from the structural nonequivalence of the molecules in the amorphous solid.

From Textbooks ● Feb. 14, 2019

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