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Definition of hydrogen
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 hydrogen is as below...
Hydrogen
(n.) A
gaseous
element,
colorless,
tasteless,
and
odorless,
the
lightest
known
substance,
being
fourteen
and a half times
lighter
than air
(hence
its use in
filling
balloons),
and over
eleven
thousand
times
lighter
than
water.
It is very
abundant,
being an
ingredient
of water and of many other
substances,
especially
those of
animal
or
vegetable
origin.
It may by
produced
in many ways, but is
chiefly
obtained
by the
action
of acids (as
sulphuric)
on
metals,
as zinc, iron, etc. It is very
Lern More About Hydrogen
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Monatomic
::
Monatomic
(adv.)
Having
the
equivalence
or
replacing
power of an atom of
hydrogen;
univalent;
as, the
methyl
radical
is
monatomic..
Ammonia
::
Ammonia
(n.) A
gaseous
compound
of
hydrogen
and
nitrogen,
NH3, with a
pungent
smell and
taste:
-- often
called
volatile
alkali,
and
spirits
of
hartshorn..
Borofluoride
::
Borofluoride
(n.) A
double
fluoride
of boron and
hydrogen,
or some other
positive
element,
or
radical;
--
called
also
fluoboride,
and
formerly
fluoborate..
Polyacid
::
Polyacid
(a.)
Capable
of
neutralizing,
or of
combining
with,
several
molecules
of a
monobasic
acid;
having
more than one
hydrogen
atom
capable
of being
replaced
by acid
radicals;
-- said of
certain
bases;
as,
calcium
hydrate
and
glycerin
are
polyacid
bases..
Hydrosulphuric
::
Hydrosulphuric
(a.)
Pertaining
to, or
derived
from,
hydrogen
and
sulphur;
as,
hydrosulphuric
acid, a
designation
applied
to the
solution
of
hydrogen
sulphide
in
water..
Silicated
::
Silicated
(a.)
Combined
or
impregnated
with
silicon
or
silica;
as,
silicated
hydrogen;
silicated
rocks..
Deutohydroguret
::
Deutohydroguret
(n.) A
compound
containing
in the
molecule
two atoms of
hydrogen
united
with some other
element
or
radical.
Tetracid
::
Tetracid
(a.)
Capable
of
neutralizing
four
molecules
of a
monobasic
acid;
having
four
hydrogen
atoms
capable
of
replacement
ba acids or acid
atoms;
-- said of
certain
bases;
thus,
erythrine,
C4H6(OH)4,
is a
tetracid
alcohol..
Pentatomic
::
Pentatomic
(a.)
Having
five
hydrogen
atoms
capable
of
substitution.
Hydr-
::
Hydr- () A
combining
form of
hydrogen,
indicating
hydrogen
as an
ingredient,
as
hydrochloric;
or a
reduction
product
obtained
by
hydrogen,
as
hydroquinone..
Synthesis
::
Synthesis
(n.) The art or
process
of
making
a
compound
by
putting
the
ingredients
together,
as
contrasted
with
analysis;
thus, water is made by
synthesis
from
hydrogen
and
oxygen;
hence,
specifically,
the
building
up of
complex
compounds
by
special
reactions,
whereby
their
component
radicals
are so
grouped
that the
resulting
substances
are
identical
in every
respect
with the
natural
articles
when such
occur;
thus,
artificial
alcohol,
urea,
indigo
blue,
alizarin,
etc., are made by
synthesis..
Acetamide
::
Acetamide
(n.) A white
crystalline
solid,
from
ammonia
by
replacement
of an
equivalent
of
hydrogen
by
acetyl..
Deflagrate
::
Deflagrate
(v. t.) To cause to burn with
sudden
and
sparkling
combustion,
as by the
action
of
intense
heat; to burn or
vaporize
suddenly;
as, to
deflagrate
refractory
metals
in the
oxyhydrogen
flame..
Phosphine
::
Phosphine
(n.) A
colorless
gas, PH3,
analogous
to
ammonia,
and
having
a
disagreeable
odor
resembling
that of
garlic.
Called
also
hydrogen
phosphide,
and
formerly,
phosphureted
hydrogen..
Acetone
::
Acetone
(n.) A
volatile
liquid
consisting
of three parts of
carbon,
six of
hydrogen,
and one of
oxygen;
pyroacetic
spirit,
--
obtained
by the
distillation
of
certain
acetates,
or by the
destructive
distillation
of
citric
acid,
starch,
sugar,
or gum, with
quicklime..
Butyl
::
Butyl (n.) A
compound
radical,
regarded
as
butane,
less one atom of
hydrogen..
Hydrosulphureted
::
Hydrosulphureted
(a.)
Combined
with
hydrogen
sulphide.
Gas
::
Gas (n.) An
aeriform
fluid;
-- a term used at first by
chemists
as
synonymous
with air, but since
restricted
to
fluids
supposed
to be
permanently
elastic,
as
oxygen,
hydrogen,
etc., in
distinction
from
vapors,
as
steam,
which
become
liquid
on a
reduction
of
temperature.
In
present
usage,
since all of the
supposed
permanent
gases have been
liquified
by cold and
pressure,
the term has
resumed
nearly
its
original
signification,
and is
applied
to any
substance
in the
elastic
or
aeriform
state..
Pentathionic
::
Pentathionic
(a.)
Pertaining
to, or
designating,
an acid of
sulphur
obtained
by
leading
hydrogen
sulphide
into a
solution
of
sulphur
dioxide;
-- so
called
because
it
contains
five atoms of
sulphur..
Metathesis
::
Metathesis
(n.) The act,
process,
or
result
of
exchange,
substitution,
or
replacement
of atoms and
radicals;
thus, by
metathesis
an acid gives up all or part of its
hydrogen,
takes on an
equivalent
amount
of a metal or base, and forms a
salt..
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