Definition of Ruthenium
Ru`the´ni`um
n.
1.
(Chem.)
A
rare
element
of
the
light
platinum
group
,
found
associated
with
platinum
ores
,
and
isolated
as
a
hard
,
brittle
steel-gray
metal
which
is
very
infusible
.
Symbol
Ru
.
Atomic
weight
103
.
5
.
Specific
gravity
12
.
26
.
See
Platinum
metals
,
under
Platinum
.
Related Words
atomic
number
44
,
metal
,
metallic
element
,
Ru
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Rustical
Rusticate
Rusticated
Rustication
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Rusticly
Rustily
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Rustle
Rustler
Rustless
Rusty
rusty dab
Rut
Ruta-baga
Rutaceous
Rutate
Ruth
Ruthenic
Ruthenious
Ruthful
Ruthless
Rutic
Rutilant
Rutilate
Rutile
Rutilian
Rutin
Rutinose.
Rutter
Rutterkin
Ruttier
Ruttish
Ruttle
Rutty
Rutylene
Ryal
Ryder
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