Noun
(''
chemistry
'')
A
form
of
isomerism
in
which
atoms
are
arranged
differently
about
a
chiral
centre
(
or
centre
of
asymmetry
).
They
exhibit
optical activity
,
and
in
a
molecule
with
a
single
chiral
centre
the
two
isomers
(
enantiomers
)
are
mirror images
of
each
other
whereas
in
a
molecule
with
multiple
chiral
centres
the
isomers
(
diastereoisomers
)
are
not
normally
mirror
images
.