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Definition of alkaloid
Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of alkaloid is as below...
Alkaloid
(n.) An
organic
base,
especially
one of a class of
substances
occurring
ready
formed
in the
tissues
of
plants
and the
bodies
of
animals..
Lern More About Alkaloid
☛ Wiki Definition of Alkaloid
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Cinchona
::
Cinchona
(n.) The bark of any
species
of
Cinchona
containing
three per cent. or more of
bitter
febrifuge
alkaloids;
Peruvian
bark;
Jesuits'
bark.
Valeridine
::
Valeridine
(n.) A base,
C10H19N,
produced
by
heating
valeric
aldehyde
with
ammonia.
It is
probably
related
to the
conine
alkaloids..
Physostigmine
::
Physostigmine
(n.) An
alkaloid
found in the
Calabar
bean (the seed of
Physostigma
venenosum),
and
extracted
as a
white,
tasteless,
substance,
amorphous
or
crystalline;
--
formerly
called
eserine,
with which it was
regarded
as
identical..
Hyoscine
::
Hyoscine
(n.) An
alkaloid
found with
hyoscyamine
(with which it is also
isomeric)
in
henbane,
and
extracted
as a
white,
amorphous,
semisolid
substance..
Nicotine
::
Nicotine
(n.) An
alkaloid
which is the
active
principle
of
tobacco.
It is a
colorless,
transparent,
oily
liquid,
having
an acrid odor, and an acrid
burning
taste.
It is
intensely
poisonous..
Thalline
::
Thalline
(n.) An
artificial
alkaloid
of the
quinoline
series,
obtained
as a white
crystalline
substance,
C10H13NO,
whose salts are
valuable
as
antipyretics;
-- so
called
from the green color
produced
in its
solution
by
certain
oxidizing
agents..
Meconin
::
Meconin
(n.) A
substance
regarded
as an
anhydride
of
meconinic
acid,
existing
in opium and
extracted
as a white
crystalline
substance.
Also
erroneously
called
meconina,
meconia,
etc., as
though
it were an
alkaloid..
Lupinine
::
Lupinine
(n.) An
alkaloid
found in
several
species
of
lupine
(Lupinus
luteus,
L.
albus,
etc.),
and
extracted
as a
bitter
crystalline
substance..
Cinchonidine
::
Cinchonidine
(n.) One of the
quinine
group of
alkaloids,
found
especially
in red
cinchona
bark. It is a white
crystalline
substance,
C19H22N2O,
with a
bitter
taste and
qualities
similar
to, but
weaker
than,
quinine;
--
sometimes
called
also
cinchonidia..
Quinidine
::
Quinidine
(n.) An
alkaloid
isomeric
with, and
resembling,
quinine,
found in
certain
species
of
cinchona,
from which it is
extracted
as a
bitter
white
crystalline
substance;
conchinine.
It is used
somewhat
as a
febrifuge..
Jervine
::
"Jervine
(n.) A
poisonous
alkaloid
resembling
veratrine,
and found with it in white
hellebore
(Veratrum
album);
--
called
also
jervina..
Verine
::
Verine
(n.) An
alkaloid
obtained
as a
yellow
amorphous
substance
by the
decomposition
of
veratrine.
Morphine
::
Morphine
(n.) A
bitter
white
crystalline
alkaloid
found in
opium,
possessing
strong
narcotic
properties,
and much used as an
anodyne;
--
called
also
morphia,
and
morphina..
Oleandrine
::
Oleandrine
(n.) One of
several
alkaloids
found in the
leaves
of the
oleander.
Ecboline
::
Ecboline
(n.) An
alkaloid
constituting
the
active
principle
of
ergot;
-- so named from its power of
producing
abortion.
Tropidine
::
Tropidine
(n.) An
alkaloid,
C8H13N,
obtained
by the
chemical
dehydration
of
tropine,
as an oily
liquid
having
a
coninelike
odor..
Quinogen
::
Quinogen
(n.) A
hypothetical
radical
of
quinine
and
related
alkaloids.
Alkaloid
::
Alkaloid
(n.) An
organic
base,
especially
one of a class of
substances
occurring
ready
formed
in the
tissues
of
plants
and the
bodies
of
animals..
Gelsemine
::
Gelsemine
(n.) An
alkaloid
obtained
from the
yellow
jasmine
(Gelsemium
sempervirens),
as a
bitter
white
semicrystalline
substance;
--
called
also
gelsemia..
Bebirine
::
Bebirine
(n.) An
alkaloid
got from the bark of the
bebeeru,
or green heart of
Guiana
(Nectandra
Rodioei).
It is a
tonic,
antiperiodic,
and
febrifuge,
and is used in
medicine
as a
substitute
for
quinine..
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