Definition of metathesis in English:

metathesis

Syllabification: me·tath·e·sis
Pronunciation: /məˈtaTHəsəs
 
/

noun (plural metatheses /-ˌsēz/)

1 Grammar The transposition of sounds or letters in a word.
More example sentences
  • X sometimes alternates with sk by metathesis: Manx for earlier Mansk; piskey as a variant of pixie; ax as a dialect form of ask.
  • We are dealing here with a phenomenon called metathesis (pronounced mih-TATH-uh-sis), the switching of two adjacent sounds within a word.
  • It looks like Safire is assuming a metathesis and then a reshaping to match other cular words, which would supply a/y.
2 (also metathesis reaction) Chemistry A reaction in which two compounds exchange ions, typically with precipitation of an insoluble product. Also called double decomposition.
More example sentences
  • Recently there has also been a growing interest in utilising what is known as the alkene metathesis reaction for altering chain-lengths of ‘oils’ to form new compounds.
  • I've never done an olefin metathesis reaction, which means that the trend started without me and will leave without me.
  • In South Africa, interest in alkene metathesis research is growing.

Origin

late 16th century: from Greek, from metatithenai 'transpose, change the position of'.

Derivatives

metathetic

Pronunciation: /ˌmetəˈTHetik/
adjective
More example sentences
  • It is suggested here that metathetic continua may not be amenable to investigation as relative class concepts.
  • Here are a few more words that are metathetic forms of former words.
  • There is a great deal of debate as to whether or not stimuli that are part of a metathetic continuum can be explained by the Power Law.

metathetical

Pronunciation: /ˌmetəTHetikəl/
adjective
More example sentences
  • The metathetical process to generate isocyanates allows also for facile formation of sterically demanding aryl isocyanide, by a deoxygenation route.
  • Now it is certainly possible to rig up such a metathetical reaction where the ions change partners and both precipitate!
  • Furthermore, we have found that the throughput for the process is improved when an ammonium salt is used for the metathetical second step of the process.

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