metathesis

n. எழுத்திடப்பெயர்ப்பு, ஒலியிடப் பெயர்ப்பு, (வேதி) இரண்டு அணுத்திரள்களிடையே அணுமாற்றம்.

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Me*tath"e*sis, n.; pl. Metatheses (. Etym: [L., fr. Gr. meta`thesis, fr. metatithe`nai to place differently, to transpose; meta` beyond, over + tithe`nai to place, set. See Thesis.] 1. (Gram.) Defn: Transposition, as of the letters or syllables of a word; as, pistris for pristis; meagre for meager. 2. (Med.) Defn: A mere change in place of a morbid substance, without removal from the body. 3. (Chem.) Defn: The act, process, or result of exchange, substitution, or replacement of atoms and radicals; thus, by metathesis an acid gives up all or part of its hydrogen, takes on an equivalent amount of a metal or base, and forms a salt.

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