metathesis
n . 音位转换,转移,置换
音位转换,转移,置换
metathesis n 1 :
a linguistic process of transposition of sounds or syllables within a word or words within a sentence 2 :
a chemical reaction between two compounds in which parts of each are interchanged to form two new compounds (
AB CD =
AD CB )
[
synonym : {
double decomposition }, {
double decomposition reaction }, {
metathesis }]
Metathesis \
Me *
tath "
e *
sis \,
n .;
pl . {
Metatheses }. [
L .,
fr .
Gr .
meta `
qesis ,
fr .
metatiqe `
nai to place differently ,
to transpose ;
meta `
beyond ,
over tiqe `
nai to place ,
set .
See {
Thesis }.]
1 . (
Gram .)
Transposition ,
as of the letters or syllables of a word ;
as ,
pistris for pristis ;
meagre for meager .
[
1913 Webster ]
2 . (
Med .)
A mere change in place of a morbid substance ,
without removal from the body .
[
1913 Webster ]
3 . (
Chem .)
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 .
[
1913 Webster ]
Metathetic
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