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Definition of hydra
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 hydra is as below...
Hydra (n.)
Hence:
A
multifarious
evil, or an evil
having
many
sources;
not to be
overcome
by a
single
effort..
Lern More About Hydra
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Hydraemia
::
Hydraemia
(n.) An
abnormally
watery
state of the
blood;
anaemia.
Bud
::
Bud (n.) A small
protuberance
on
certain
low forms of
animals
and
vegetables
which
develops
into a new
organism,
either
free or
attached.
See
Hydra..
Neuter
::
Neuter
(n.) An
organism,
either
vegetable
or
animal,
which at its
maturity
has no
generative
organs,
or but
imperfectly
developed
ones, as a plant
without
stamens
or
pistils,
as the
garden
Hydrangea;
esp., one of the
imperfectly
developed
females
of
certain
social
insects,
as of the ant and the
common
honeybee,
which
perform
the
labors
of the
community,
and are
called
workers..
Hydrastine
::
Hydrastine
(n.) An
alkaloid,
found in the
rootstock
of the
golden
seal
(Hydrastis
Canadensis),
and
extracted
as a
bitter,
white,
crystalline
substance.
It is used as a tonic and
febrifuge..
Hydragogue
::
Hydragogue
(a.)
Causing
a
discharge
of
water;
expelling
serum
effused
into any part of the body, as in
dropsy..
Gummite
::
Gummite
(n.) A
yellow
amorphous
mineral,
essentially
a
hydrated
oxide of
uranium
derived
from the
alteration
of
uraninite..
Hose
::
Hose (n.) A
flexible
pipe, made of
leather,
India
rubber,
or other
material,
and used for
conveying
fluids,
especially
water,
from a
faucet,
hydrant,
or fire
engine..
Thionol
::
Thionol
(n.) A red or
violet
dyestuff
having
a
greenish
metallic
luster.
It is
produced
artificially,
by the
chemical
dehydration
of
thionine,
as a brown
amorphous
powder..
Sulphydric
::
Sulphydrate
(n.) A
compound,
analogous
to a
hydrate,
regarded
as a salt of
sulphydric
acid, or as a
derivative
of
hydrogen
sulphide
in which one half of the
hydrogen
is
replaced
by a base (as
potassium
sulphydrate,
KSH), or as a
hydrate
in which the
oxygen
has been
wholly
or
partially
replaced
by
sulphur..
Sinistrin
::
Sinistrin
(n.) A
mucilaginous
carbohydrate,
resembling
achroodextrin,
extracted
from
squill
as a
colorless
amorphous
substance;
-- so
called
because
it is
levorotatory..
Hydrargochloride
::
Hydrargochloride
(n.) A
compound
of the
bichloride
of
mercury
with
another
chloride.
Ethylate
::
Ethylate
(n.) A
compound
derived
from ethyl
alcohol
by the
replacement
of the
hydroxyl
hydrogen,
after the
manner
of a
hydrate;
an ethyl
alcoholate;
as,
potassium
ethylate,
C2H5.O.K..
Hydracid
::
Hydracid
(n.) An acid
containing
hydrogen;
--
sometimes
applied
to
distinguish
acids like
hydrochloric,
hydrofluoric,
and the like, which
contain
no
oxygen,
from the
oxygen
acids or
oxacids.
See
Acid..
Lime
::
Lime (v. t.) To treat with lime, or oxide or
hydrate
of
calcium;
to
manure
with lime; as, to lime hides for
removing
the hair; to lime sails in order to
whiten
them..
Polypite
::
Polypite
(n.) One of the
feeding
zooids,
or
polyps,
of a
coral,
hydroid,
or
siphonophore;
a
hydranth.
See
Illust.
of
Campanularian..
Verditer
::
Verditer
(n.)
Either
one of two
pigments
(called
blue
verditer,
and green
verditer)
which are made by
treating
copper
nitrate
with
calcium
carbonate
(in the form of lime,
whiting,
chalk,
etc.) They
consist
of
hydrated
copper
carbonates
analogous
to the
minerals
azurite
and
malachite..
Normal
::
Normal
(a.)
Denoting
certain
hypothetical
compounds,
as acids from which the real acids are
obtained
by
dehydration;
thus,
normal
sulphuric
acid and
normal
nitric
acid are
respectively
S(OH)6,
and
N(OH)5..
Grizzly
::
Grizzly
(a.) In
hydraulic
mining,
gratings
used to catch and throw out large
stones
from the
sluices..
Terpinol
::
Terpinol
(n.) Any oil
substance
having
a
hyacinthine
odor,
obtained
by the
action
of acids on
terpin,
and
regarded
as a
related
hydrate..
Cellulose
::
Cellulose
(n.) The
substance
which
constitutes
the
essential
part of the solid
framework
of
plants,
of
ordinary
wood,
linen,
paper,
etc. It is also found to a
slight
extent
in
certain
animals,
as the
tunicates.
It is a
carbohydrate,
(C6H10O5)n,
isomeric
with
starch,
and is
convertible
into
starches
and
sugars
by the
action
of heat and
acids.
When pure, it is a white
amorphous
mass. See
Starch,
Granulose,
Lignin..
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