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Definition of reaction
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 reaction is as below...
Reaction
(n.) Any
action
in
resisting
other
action
or
force;
counter
tendency;
movement
in a
contrary
direction;
reverse
action.
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Test
::
Test (n.) A
reaction
employed
to
recognize
or
distinguish
any
particular
substance
or
constituent
of a
compound,
as the
production
of some
characteristic
precipitate;
also, the
reagent
employed
to
produce
such
reaction;
thus, the
ordinary
test for
sulphuric
acid is the
production
of a white
insoluble
precipitate
of
barium
sulphate
by means of some
soluble
barium
salt..
Barker''s Mill
::
Barker's
mill () A
machine,
invented
in the 17th
century,
worked
by a form of
reaction
wheel.
The water flows into a
vertical
tube and
gushes
from
apertures
in
hollow
horizontal
arms,
causing
the
machine
to
revolve
on its
axis..
Reaction
::
Reaction
(n.) An
action
induced
by vital
resistance
to some other
action;
depression
or
exhaustion
of vital force
consequent
on
overexertion
or
overstimulation;
heightened
activity
and
overaction
succeeding
depression
or
shock.
Acid
::
Acid (a.) Of or
pertaining
to an acid; as, acid
reaction..
Bromoform
::
Bromoform
(n.) A
colorless
liquid,
CHBr3,
having
an
agreeable
odor and
sweetish
taste.
It is
produced
by the
simultaneous
action
of
bromine
and
caustic
potash
upon wood
spirit,
alcohol,
or
acetone,
as also by
certain
other
reactions.
In
composition
it is the same as
chloroform,
with the
substitution
of
bromine
for
chlorine.
It is
somewhat
similar
to
chloroform
in its
effects..
Reaction
::
Reaction
(n.) The
mutual
or
reciprocal
action
of
chemical
agents
upon each
other,
or the
action
upon such
chemical
agents
of some form of
energy,
as heat,
light,
or
electricity,
resulting
in a
chemical
change
in one or more of these
agents,
with the
production
of new
compounds
or the
manifestation
of
distinctive
characters.
See
Blowpipe
reaction,
Flame
reaction,
under
Blowpipe,
and
Flame..
Saleratus
::
Saleratus
(n.)
Aerated
salt; a white
crystalline
substance
having
an
alkaline
taste and
reaction,
consisting
of
sodium
bicarbonate
(see under
Sodium.)
It is
largely
used in
cooking,
with sour milk
(lactic
acid) or cream of
tartar
as a
substitute
for
yeast.
It is also an
ingredient
of most
baking
powders,
and is used in the
preparation
of
effervescing
drinks..
Magnesia
::
Magnesia
(n.) A light
earthy
white
substance,
consisting
of
magnesium
oxide,
and
obtained
by
heating
magnesium
hydrate
or
carbonate,
or by
burning
magnesium.
It has a
slightly
alkaline
reaction,
and is used in
medicine
as a mild
antacid
laxative.
See
Magnesium..
Reciprocity
::
Reciprocity
(n.)
Mutual
action
and
reaction.
Recoil
::
Recoil
(n.)
Specifically,
the
reaction
or
rebounding
of a
firearm
when
discharged..
Lactucin
::
Lactucin
(n.) A
white,
crystalline
substance,
having
a
bitter
taste and a
neutral
reaction,
and
forming
one of the
essential
ingredients
of
lactucarium..
Explosive
::
Explosive
(n.) An
explosive
agent;
a
compound
or
mixture
susceptible
of a rapid
chemical
reaction,
as
gunpowder,
or
nitro-glycerine..
Diazotize
::
Diazotize
(v. t.) To
subject
to such
reactions
or
processes
that diazo
compounds,
or their
derivatives,
shall be
produced
by
chemical
exchange
or
substitution..
Resist
::
Resist
(v. t.) To
counteract,
as a
force,
by
inertia
or
reaction..
Pearlash
::
Pearlash
(n.) A white
amorphous
or
granular
substance
which
consists
principally
of
potassium
carbonate,
and has a
strong
alkaline
reaction.
It is
obtained
by
lixiviating
wood
ashes,
and
evaporating
the lye, and has been an
important
source
of
potassium
compounds.
It is used in
making
soap,
glass,
etc..
Reaction
::
Reaction
(n.)
Backward
tendency
or
movement
after
revolution,
reform,
or great
progress
in any
direction..
Coagulate
::
Coagulate
(v. t.) To cause (a
liquid)
to
change
into a
curdlike
or
semisolid
state,
not by
evaporation
but by some kind of
chemical
reaction;
to
curdle;
as,
rennet
coagulates
milk; heat
coagulates
the white of an egg..
Bile
::
Bile (n.) A
yellow,
or
greenish,
viscid
fluid,
usually
alkaline
in
reaction,
secreted
by the
liver.
It
passes
into the
intestines,
where it aids in the
digestive
process.
Its
characteristic
constituents
are the bile
salts,
and
coloring
matters..
Lactamide
::
Lactamide
(n.) An acid amide
derived
from
lactic
acid, and
obtained
as a white
crystalline
substance
having
a
neutral
reaction.
It is
metameric
with
alanine..
Casein
::
Casein
(n.) A
proteid
substance
present
in both the
animal
and the
vegetable
kingdom.
In the
animal
kingdom
it is
chiefly
found in milk, and
constitutes
the main part of the curd
separated
by
rennet;
in the
vegetable
kingdom
it is found more or less
abundantly
in the seeds of
leguminous
plants.
Its
reactions
resemble
those of
alkali
albumin..
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