infusorial earth 【化】 硅藻土
【医】 硅藻土
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]