isomer 音标拼音: ['ɑɪsəmɚ]
n . 异构体
异构体
isomer n 1 :
a compound that exists in forms having different arrangements of atoms but the same molecular weight Isomer \
I "
so *
mer \ ([
imac ]"
s [-
o ]*
m [~
e ]
r ),
n . [
See {
Isomeric }.]
(
Chem .)
A compound which is isomeric with another body or compound ;
a compound having the same chemical composition as another compound ;
a member of an isomeric series .
[
1913 Webster PJC ]
Note :
An isomer may be a {
structural isomer },
in which some of the atoms are bonded to different atoms (
as in {
CH3 .
CH2 .
NH2 }
and {
CH3 .
NH .
CH3 }),
or an {
optical isomer },
in which the number and types of chemical bonds are identical ,
but the arrangement of the atoms in three -
dimensional space is different ;
the latter are also called {
stereoisomers }.
[
PJC ]
50 Moby Thesaurus words for "
isomer ":
acid ,
acidity ,
agent ,
alkali ,
alkalinity ,
alloisomer ,
anion ,
antacid ,
artificial isotope ,
atom ,
base ,
biochemical ,
cation ,
chemical ,
chemical element ,
chromoisomer ,
compound ,
copolymer ,
deuterium ,
dimer ,
element ,
heavy chemicals ,
heavy hydrogen ,
high polymer ,
homopolymer ,
hydracid ,
inorganic chemical ,
ion ,
isobar ,
isotone ,
isotope ,
macromolecule ,
metamer ,
molecule ,
monomer ,
neutralizer ,
nonacid ,
nuclear isomer ,
organic chemical ,
oxyacid ,
polymer ,
protium ,
pseudoisomer ,
radical ,
radioactive isotope ,
radioisotope ,
reagent ,
strontium 90 ,
sulfacid ,
trimer
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