Answer: metatheses

AnswerCrossword Clue
metathesesA reaction in which two compounds exchange ions, typically with precipitation of an insoluble product
metathesesMETATHESIS, the transposition within a word of letters, sounds, or syllables, as in the change from Old English brid to modern English bird or in the confusion of modren for modern
metathesesThe transposition of sounds or letters in a word