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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.) 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..
Lern More About Reaction
☛ Wiki Definition of Reaction
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Lactucin
::
Lactucin
(n.) A
white,
crystalline
substance,
having
a
bitter
taste and a
neutral
reaction,
and
forming
one of the
essential
ingredients
of
lactucarium..
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..
Acidimetry
::
Acidimetry
(n.) The
measurement
of the
strength
of
acids,
especially
by a
chemical
process
based on the law of
chemical
combinations,
or the fact that, to
produce
a
complete
reaction,
a
certain
definite
weight
of
reagent
is
required..
Reflex
::
Reflex
(a.)
Produced
in
reaction,
in
resistance,
or in
return..
Basic
::
Basic (a.)
Apparently
alkaline,
as
certain
normal
salts which
exhibit
alkaline
reactions
with test
paper..
Catalysis
::
Catalysis
(n.) A
process
by which
reaction
occurs
in the
presence
of
certain
agents
which were
formerly
believed
to exert an
influence
by mere
contact.
It is now
believed
that such
reactions
are
attended
with the
formation
of an
intermediate
compound
or
compounds,
so that by
alternate
composition
and
decomposition
the agent is
apparenty
left
unchanged;
as, the
catalysis
of
making
ether from
alcohol
by means of
sulphuric
acid; or
catalysis
in the
action
of
soluble
ferments
(as
diastase,
or
ptyali
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..
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..
Turbine
::
Turbine
(n.) A water
wheel,
commonly
horizontal,
variously
constructed,
but
usually
having
a
series
of
curved
floats
or
buckets,
against
which the water acts by its
impulse
or
reaction
in
flowing
either
outward
from a
central
chamber,
inward
from an
external
casing,
or from above
downward,
etc.; -- also
called
turbine
wheel..
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..
Strook
::
Strontium
(n.) A
radioactive
isotope
of
strontium
produced
by
certain
nuclear
reactions,
and
constituting
one of the
prominent
harmful
components
of
radioactive
fallout
from
nuclear
explosions;
also
called
radiostrontium.
It has a
half-life
of 28
years..
Coagulation
::
Coagulation
(n.) The
change
from a
liquid
to a
thickened,
curdlike,
insoluble
state,
not by
evaporation,
but by some kind of
chemical
reaction;
as, the
spontaneous
coagulation
of
freshly
drawn
blood;
the
coagulation
of milk by
rennet,
or acid, and the
coagulation
of egg
albumin
by heat.
Coagulation
is
generally
the
change
of an
albuminous
body into an
insoluble
modification..
Xanthoproteic
::
Xanthoproteic
(a.)
Pertaining
to, or
derived
from,
xanthoprotein;
showing
the
characters
of
xanthoprotein;
as,
xanthoproteic
acid; the
xanthoproteic
reaction
for
albumin..
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..
Reactionary
::
Reactionary
(n.) One who
favors
reaction,
or seeks to undo
political
progress
or
revolution..
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..
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..
Reactionaries
::
Reactionaries
(pl. ) of
Reactionar.
Reactionist
::
Reactionist
(n.) A
reactionary.
Water Wheel
::
Water wheel () Any wheel for
propelling
machinery
or for other
purposes,
that is made to
rotate
by the
direct
action
of
water;
--
called
an
overshot
wheel when the water is
applied
at the top, an
undershot
wheel when at the
bottom,
a
breast
wheel when at an
intermediate
point;
other forms are
called
reaction
wheel,
vortex
wheel,
turbine
wheel,
etc..
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