any compact sedimentary rock composed mainly of clay materials; clay stone.
The fact that argillite continued in use until the very last does not affect this conclusion.
Appletons’ Popular Science Monthly, July 1899 Various
Next above the Altyn lies thirty-four hundred feet of Appekunny argillite, or dull-green shale.
The Book of the National Parks Robert Sterling Yard
It is very significant that we never find one where the workman used both flint and argillite.
The Prehistoric World E. A. Allen
Sandstone may be converted into quartzite, and shale into argillite, a compact, massive clay rock.
The Elements of Geology William Harmon Norton
Here anthracitiferous coal is found in beds of argillite and sandstone.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 Various
any argillaceous rock, esp a hardened mudstone
A highly compacted sedimentary or slightly metamorphic rock consisting primarily of particles of clay or silt. Argillite differs from mudstone in that it does not have the same fine laminations, and from shale and slate in that it is not fissile.
a liver enzyme that converts arginine to urea. arginase ar·gi·nase (är’jə-nās’, -nāz) n. An enzyme found primarily in the liver that catalyzes the hydrolysis of arginine to urea and ornithine.
an essential amino acid, C 6 H 14 N 4 O 2 : the free amino acid increases insulin secretion and is converted to urea in the liver by arginase. Symbol: R. Abbreviation: Arg; Historical Examples In vertebrates, the basis for the phosphoric acid is creatine, whereas invertebrates have arginine instead. Smithsonian Institution – United […]
argininosuccinicaciduria argininosuccinicaciduria ar·gi·ni·no·suc·cin·ic·ac·i·du·ri·a (är’jə-nĭ-nō-sək-sĭn’ĭk-ās’ĭ-dur’ē-ə, -dyur’-, är’jə-nē’-) n. A disorder characterized by excessive excretion of argininosuccinic acid in the urine, epilepsy, ataxia, mental retardation, liver disease, and friable, tufted hair.
- Argininosuccinic acid
argininosuccinic acid argininosuccinic acid ar·gi·ni·no·suc·cin·ic acid (är’jə-nĭ-nō-sək-sĭn’ĭk, är’jə-nē’-) n. An acid formed as an intermediate during the urea cycle in a reaction involving aspartic acid and adenosine triphosphate.