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infusorial
A
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infusoria
Webster's 1913 Dictionary
INFUSORIAL
INFUSORIAL
In
`
fu
*
so
"
ri
*
al,
a. (Zoöl.)
Defn:
Belonging
to
the
Infusoria;
composed
of,
or
containing,
Infusoria;
as,
infusorial
earth.
Infusorial
earth
(Geol.), a
deposit
of
fine,
usually
white,
siliceous
material,
composed
mainly
of
the
shells
of
the
microscopic
plants
called
diatoms.
It
is
used
in
polishing
powder,
and
in
the
manufacture
of
dynamite.