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diatomite

n. 硅藻土

矽藻土

WordNet (r) 3.0 (2006) (WordNet)

diatomite
n 1: a light soil consisting of siliceous diatom remains and
often used as a filtering material [synonym: {diatomaceous
earth}, {diatomite}, {kieselguhr}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Infusorial \In`fu*so"ri*al\, a. (Zool.)
Belonging to the Infusoria; composed of, or containing,
Infusoria; as, infusorial earth.
[1913 Webster]

{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]

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Diatomaceous earth - Wikipedia
Diatomaceous earth ( ˌdaɪ ətəˈmeɪʃəs DY-ə-tə-MAY-shəs), also known as diatomite ( daɪˈætəmaɪt dy-AT-ə-myte), celite, or kieselgur, is a naturally occurring, soft, siliceous sedimentary rock that can be crumbled into a fine white to off-white powder
Diatomite : Properties, Formation, Compositions, Uses - Geology Science
Diatomite is a sedimentary rock that has a biological origin, meaning it is formed from the accumulated remains of microscopic organisms The primary contributors to diatomite formation are diatoms, which are single-celled algae with a unique cell wall made of silica
Diatomite and Diatomaceous Earth - Geology. com
Diatomite is a friable light-colored sedimentary rock that is mainly composed of the siliceous skeletal remains of diatoms It is a very porous rock with a fine particle size and a low specific gravity
Diatomite — Composition, Formation Where to Find It
Diatomite (diatomaceous earth) is a soft, siliceous sedimentary rock composed almost entirely of the fossilized remains of diatoms — microscopic algae with intricate glass-like cell walls A single cubic centimeter can contain millions of these tiny fossils
Exploring Diatomite: The Essential Mineral Found in Everyday Life
What is Diatomite? Diatomite, also known as diatomaceous earth, is a soft, friable, and light-colored sedimentary rock composed mainly of the fossilized remains of diatoms—microscopic, single-celled algae with silica-based cell walls
Diatomite Statistics and Information | U. S. Geological Survey
Diatomite is a chalk-like, soft, friable, earthy, very fine-grained, siliceous sedimentary rock, usually light in color (white if pure, commonly buff to gray in situ, and rarely black)
Diatomite - Imerys
Diatomite is a sedimentary rock composed of the fossilized skeletal remains of single-cell aquatic algaes known as ‘diatoms’ This unique form of silica has an elaborate honeycomb structure, peppered with thousands of tiny holes ranging from a few microns to submicron diameters
DIATOMITE Definition Meaning - Merriam-Webster
Medical Definition diatomite noun di· at· o· mite dī-ˈat-ə-ˌmīt : a light friable siliceous material derived chiefly from diatom remains and used especially as a filter called also diatomaceous earth
Diatomaceous earth | Uses, Benefits Safety | Britannica
Under a high-powered microscope the form of the diatoms can be distinguished When well hardened, it is called diatomite Similar siliceous rocks, called radiolarian earth and radiolarite, are formed from the latticelike opaline skeletons of Radiolaria
Diatomite - an overview | ScienceDirect Topics
Diatomite was formerly used as a fireproof packing material between the outer casing and inner compartment of safes If this type of safe is broken open, diatomite may contaminate clothing with a high concentration of diatom valves

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