Isomerism
Definition of Isomerism
I`som´er`ism
n.
1.
(Chem.)
The
state
,
quality
,
or
relation
,
of
two
or
more
isomeric
substances
.
Physical isomerism
(Chem.)
a
former
term
for
optical
isomerism
.
optical isomerism
(Chem.)
the
condition
or
relation
of
certain
(
isomeric
)
substances
,
which
,
while
chemically
identical
(
in
that
they
have
the
same
composition
,
the
same
molecular
weights
,
and
the
same
ultimate
constitution
),
are
yet
physically
different
,
as
in
their
action
on
polarized
light
,
as
dextro-
and
lævo-tartaric
acids
,
or
the
sugars
galactose
and
glucose
.
In
such
compounds
there
is
usually
at
least
one
unsymmetrical
carbon
atom
and
typically
more
than
one
.
See
Unsymmetrical
.
Related Words
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Isogonic lines
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Isographic
Isography
Isohyetose
Isolable
Isolate
Isolated
Isolated point of a curve
Isolatedly
Isolation
isolationism
isolationist
Isolator
Isologous
Isomer
Isomere
isomeric
Isomeride
-Isomerism-
Isomeromorphism
Isometric
isometric exercise
Isometric lines
Isometrical perspective
Isometrical projection
isometrics
Isomorph
Isomorphic
Isomorphism
Isomorphous
Isonandra
Isonephelic
Isonicotine
Isonicotinic
Isonitroso-
Isonomic
Isonomy
Isopathy
Isopepsin
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