[化] 硅藻土

[医] 硅藻土

[ noun ]
a light soil consisting of siliceous diatom remains and often used as a filtering material
<noun.substance>

Kieselguhr \Kie"sel*guhr`\, n. [G., fr. kiesel flint + guhr an
earthy deposit or sediment in water.]
Siliceous earth; diatomaceous earth; specifically, porous
infusorial earth, used as an absorbent of nitroglycerin in
the manufacture of dynamite.

Infusorial \In`fu*so"ri*al\, a. (Zo["o]l.)
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; also called
{diatomaceous earth}, {kieselguhr}, and {diatomite}. It is
used in polishing powder, and in the manufacture of
dynamite.
[1913 Webster +PJC]


diatomaceous earth \di`a*to*ma"ceous earth`\ (Geol.),
a deposit of fine, usually white, siliceous material,
composed mainly of the shells of the microscopic plants
called diatoms; also called {infusorial earth}, {kieselguhr},
and {diatomite}. It is used in polishing powder, and in the
manufacture of dynamite.
[1913 Webster +PJC]