metathesis

• 指换位或交换的过程；在语言学中指词内音位或音节的互换（如“-tion”与“-sion”的交替），在化学中指复分解反应，即两种化合物互相交换成分生成两种新化合物。

A noun referring to a process of transposition or exchange, used in linguistics for the rearrangement of sounds or syllables within a word, and in chemistry for a reaction where parts of two compounds are swapped to form new compounds.

1. Linguistic transpositionC2formal

   The transposition of sounds, syllables, or letters within a word, or words within a sentence.

   音位置换

   • The word 'ask' was historically pronounced 'aks' due to metathesis.
   • Metathesis is common in many languages, such as in the Spanish word 'palabra' from Latin 'parabola'.
   • In English, 'comfortable' is often pronounced 'comfterble' because of metathesis.

   同义词interchangepermutationreversalshifttransposition

2. C2formalscientific

   A chemical reaction between two compounds where parts of each are interchanged to form two new compounds (AB + CD = AD + CB).

   复分解反应

   • The reaction between silver nitrate and sodium chloride is a classic example of metathesis.
   • Metathesis reactions are fundamental in organic chemistry for creating new carbon-carbon bonds.
   • The chemist studied the metathesis process to synthesize a new polymer.