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Webster’s Dictionary (1828)



134 words match “ALKALI”

SPERMATIN n.
A substance allied to alkali albumin and to mucin, present in semen, to which it is said to impart the mucilaginous character.
SULPHUR n.
of antimonic sulphide, Sb2S5, -- formerly a famous nostrum. -- Sulphur base (Chem.), an alkaline sulphide capable of acting as a base in the formation of sulphur salts according to the old dual theory of salts. [Archaic] -- Sulphur dioxide (Chem.), a colorless gas, SO2, of a pungent, suffocating odor, produced by the…
TEST n.
en acted upon by those substances; thus, litmus paper is turned red by acids, and blue by alkalies, turmeric paper is turned brown by alkalies, etc. (b) (Law) An instrument admitted as a standard or comparison of handwriting in those jurisdictions in which comparison of hands is permitted as a mode of proving handwriti…
TRIMETHYLAMINE n.
A colorless volatile alkaline liquid, N.(CH3)3, obtained from herring brine, beet roots, etc., with a characteristic herringlike odor. It is regarded as a substituted ammonia containing three methyl groups.
TRYPSIN n.
in the pancreatic juice. Unlike the pepsin of the gastric juice, it acts in a neutral or alkaline fluid, and not only converts the albuminous matter of the food into soluble peptones, but also, in part, into leucin and tyrosin.
TURMERIC a.
turmerol. Turmeric paper (Chem.), paper impregnated with turmeric and used as a test for alkaline substances, by which it is changed from yellow to brown. -- Turmeric root. (Bot.) (a) Bloodroot. (b) Orangeroot.
URANIN n.
An alkaline salt of fluorescein, obtained as a brownish red substance, which is used as a dye; -- so called from the peculiar yellowish green fluorescence (resembling that of uranium glass) of its solutions. See Fluorescein.
UROXANIC a.
hich is obtained, as a white crystalline substance, by the slow oxidation of uric acid in alkaline solution.
VEGETABLE a.
Consisting of, or comprising, plants; as, the vegetable kingdom. Vegetable alkali (Chem.), an alkaloid. -- Vegetable brimstone. (Bot.) See Vegetable sulphur, below. -- Vegetable butter (Bot.), a name of several kinds of concrete vegetable oil; as that produced by the Indian butter tree, the African shea tree, and the…
VITRIFIABLE a.
Capable of being vitrified, or converted into glass by heat and fusion; as, flint and alkalies are vitrifiable.
VOLATILE a.
le; fickle; as, a volatile temper. You are as giddy and volatile as ever. Swift. Volatile alkali. (Old Chem.) See under Alkali. -- Volatile liniment, a liniment composed of sweet oil and ammonia, so called from the readiness with which the latter evaporates. -- Volatile oils. (Chem.) See Essential oils, under Essenti…
WASHING n.
a filter, etc. -- Washing fluid, a liquid used as a cleanser, and consisting usually of alkaline salts resembling soaps in their action. -- Washing machine, a machine for washing; specifically, a machine for washing clothes. -- Washing soda. (Chem.) See Sodium carbonate, under Sodium. -- Washing stuff, any earthy…
WHITE n.
ich surrounds the yolk in an egg, particularly in the egg of a fowl. In a hen's egg it is alkaline, and contains about 86 per cent of water and 14 per cent of solid matter, the greater portion of which is egg albumin. It likewise contains a small amount of globulin, and traces of fats and sugar, with some inorganic mat…
WOOD n.
rom the poplar and other white woods, and so softened by digestion with a hot solution of alkali that it can be formed into sheet paper, etc. It is now produced on an immense scale. -- Wood quail (Zoöl.), any one of several species of East Indian crested quails belonging to Rollulus and allied genera, as the red- cres…
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