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vowel mutation

American  

noun

  1. umlaut.

  2. a vowel sound modified by umlaut.


vowel mutation British  

noun

  1. another name for umlaut

"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

Etymology

Origin of vowel mutation

First recorded in 1865–70

Example Sentences

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Vowel mutation in English and German.

From Project Gutenberg