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1. potassium cyanide
noun.
A
poisonous
salt
(KCN)
used
in
electroplating
and
in
photography.
Synonyms
cyanide
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2. potassium-argon dating
noun.
Geological
dating
that
relies
on
the
proportions
of
radioactive
potassium
in
a
rock
sample
and
its
decay
product,
argon.
Synonyms
geological dating
dating
3. potassium
noun.
(pəˈtæsiːəm)
A
light
soft
silver-white
metallic
element
of
the
alkali
metal
group;
oxidizes
rapidly
in
air
and
reacts
violently
with
water;
is
abundant
in
nature
in
combined
forms
occurring
in
sea
water
and
in
carnallite
and
kainite
and
sylvite.
Synonyms
saltwater
carnallite
metal
sylvine
seawater
kainite
langbeinite
brine
sylvite
metallic element
atomic number 19
K
Antonyms
fresh water
nonmetallic
4. cyanide
noun.
(ˈsaɪəˌnaɪd, ˈsaɪˌnaɪd)
An
extremely
poisonous
salt
of
hydrocyanic
acid.
Synonyms
sodium cyanide
salt
potassium cyanide
Antonyms
dull
Etymology
cyanide (English)
-ide (English)
cyano- (English)
κυάνεος (Ancient Greek (to 1453))
5. cyanide
noun.
(ˈsaɪəˌnaɪd, ˈsaɪˌnaɪd)
Any
of
a
class
of
organic
compounds
containing
the
cyano
radical
-CN.
Synonyms
vinyl cyanide
propenonitrile
acrylonitrile
nitril
nitrile
organic compound
Etymology
cyanide (English)
-ide (English)
cyano- (English)
κυάνεος (Ancient Greek (to 1453))
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