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Definition of aphtha
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 aphtha is as below...
Aphtha
(n.) One of the
whitish
specks
called
aphthae.
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Naphthazarin
::
Naphthazarin
(n.) A
dyestuff,
resembling
alizarin,
obtained
from
naphthoquinone
as a red
crystalline
substance
with a
bright
green,
metallic
luster;
--
called
also
naphthalizarin..
Phthalic
::
Phthalic
(a.)
Pertaining
to, or
designating,
a
dibasic
acid
obtained
by the
oxidation
of
naphthalene
and
allied
substances..
Aphthous
::
Aphthous
(a.)
Pertaining
to, or
caused
by,
aphthae;
characterized
by
aphtae;
as,
aphthous
ulcers;
aphthous
fever..
Chrysene
::
Chrysene
(n.) One of the
higher
aromatic
hydrocarbons
of coal tar,
allied
to
naphthalene
and
anthracene.
It is a white
crystalline
substance,
C18H12,
of
strong
blue
fluorescence,
but
generally
colored
yellow
by
impurities..
Launch
::
Launch
(n.) The boat of the
largest
size
belonging
to a ship of war; also, an open boat of any size
driven
by
steam,
naphtha,
electricity,
or the
like..
Naphthyl
::
Naphthyl
(n.) A
hydrocarbon
radical
regarded
as the
essential
residue
of
naphthalene.
Aphtha
::
Aphtha
(n.) One of the
whitish
specks
called
aphthae.
Naphthol
::
Naphthol
(n.) Any one of a
series
of
hydroxyl
derivatives
of
naphthalene,
analogous
to
phenol.
In
general
they are
crystalline
substances
with a
phenol
(carbolic)
odor..
Thionaphthene
::
Thionaphthene
(n.) A
double
benzene
and
thiophene
nucleus,
C8H6S,
analogous
to
naphthalene,
and like it the base of a large
series
of
derivatives..
Naphthaline
::
Naphthaline
(n.) See
Naphthalene.
Terephthalic
::
Terephthalic
(a.) Of,
pertaining
to, or
designating,
a
dibasic
acid of the
aromatic
series,
metameric
with
phthalic
acid, and
obtained,
as a
tasteless
white
crystalline
powder,
by the
oxidation
of oil of
turpentine;
--
called
also
paraphthalic
acid. Cf.
Phthalic..
Naphthalene
::
Naphthalene
(n.) A white
crystalline
aromatic
hydrocarbon,
C10H8,
analogous
to
benzene,
and
obtained
by the
distillation
of
certain
bituminous
materials,
such as the heavy oil of coal tar. It is the type and basis of a large
number
of
derivatives
among
organic
compounds.
Formerly
called
also
naphthaline..
Thrush
::
Thrush
(n.) An
affection
of the
mouth,
fauces,
etc.,
common
in newly born
children,
characterized
by
minute
ulcers
called
aphthae.
See
Aphthae..
Aphtha
::
Aphtha
(n.) The
disease,
also
called
thrush..
Aphthae
::
Aphthae
(n. pl.)
Roundish
pearl-colored
specks
or
flakes
in the
mouth,
on the lips, etc.,
terminating
in white
sloughs.
They are
commonly
characteristic
of
thrush..
Naphtha
::
Naphtha
(n.) One of
several
volatile
inflammable
liquids
obtained
by the
distillation
of
certain
carbonaceous
materials
and
resembling
the
naphtha
from
petroleum;
as,
Boghead
naphtha,
from
Boghead
coal
(obtained
at
Boghead,
Scotland);
crude
naphtha,
or light oil, from coal tar; wood
naphtha,
from wood, etc..
Naphthoic
::
Naphthoic
(a.)
Pertaining
to,
derived
from, or
related
to,
naphthalene;
-- used
specifically
to
designate
any one of a
series
of
carboxyl
derivatives,
called
naphthoic
acids..
Naphthylamine
::
Naphthylamine
(n.) One of two basic amido
derivatives
of
naphthalene,
C10H7.NH2,
forming
crystalline
solids..
Bitumen
::
Bitumen
(n.) By
extension,
any one of the
natural
hydrocarbons,
including
the hard,
solid,
brittle
varieties
called
asphalt,
the
semisolid
maltha
and
mineral
tars, the oily
petroleums,
and even the
light,
volatile
naphthas..
Picoline
::
Picoline
(n.) Any one of three
isometric
bases
(C6H7N)
related
to
pyridine,
and
obtained
from bone oil,
acrolein
ammonia,
and
coal-tar
naphtha,
as
colorless
mobile
liquids
of
strong
odor; --
called
also
methyl
pyridine..
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