Definition of alum

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Alum (n.) A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four molecules of water of crystallization.

Lern More About Alum

Aluminum :: Aluminum (n.) See Aluminium.
Defame :: Defame (v. t.) To harm or destroy the good fame or reputation of; to disgrace; especially, to speak evil of maliciously; to dishonor by slanderous reports; to calumniate; to asperse..
Sandalwood :: Sandalwood (n.) The highly perfumed yellowish heartwood of an East Indian and Polynesian tree (Santalum album), and of several other trees of the same genus, as the Hawaiian Santalum Freycinetianum and S. pyrularium, the Australian S. latifolium, etc. The name is extended to several other kinds of fragrant wood..
Alumish :: Alumish (a.) Somewhat like alum.
Saxifragaceous :: Saxifragaceous (a.) Of or pertaining to a natural order of plants (Saxifragaceae) of which saxifrage is the type. The order includes also the alum root, the hydrangeas, the mock orange, currants and gooseberries, and many other plants..
Alumen :: Alumen (n.) Alum.
Alum :: Alum (n.) A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four molecules of water of crystallization.
Phillipsite :: Phillipsite (n.) A hydrous silicate of aluminia, lime, and soda, a zeolitic mineral commonly occurring in complex twin crystals, often cruciform in shape; -- called also christianite..
Santalic :: Santalic (a.) Of, pertaining to, or obtained from, sandalwood (Santalum); -- used specifically to designate an acid obtained as a resinous or red crystalline dyestuff, which is called also santalin..
Alumnae :: Alumnae (pl. ) of Alumn.
Sodalite :: Sodalite (n.) A mineral of a white to blue or gray color, occuring commonly in dodecahedrons, also massive. It is a silicate of alumina and soda with some chlorine..
Misinform :: Misinform (v. i.) To give untrue information; (with against) to calumniate.
Argil :: Argil (n.) Clay, or potter's earth; sometimes pure clay, or alumina. See Clay..
Bole :: Bole (n.) Any one of several varieties of friable earthy clay, usually colored more or less strongly red by oxide of iron, and used to color and adulterate various substances. It was formerly used in medicine. It is composed essentially of hydrous silicates of alumina, or more rarely of magnesia. See Clay, and Terra alba..
Wootz :: Wootz (n.) A species of steel imported from the East Indies, valued for making edge tools; Indian steel. It has in combination a minute portion of alumina and silica..
Alumni :: Alumni (pl. ) of Alumnu.
Roche Alum :: Roche alum () A kind of alum occuring in small fragments; -- so called from Rocca, in Syria, whence alum is said to have been obtained; -- also called rock alum..
Detraction :: Detraction (n.) The act of taking away from the reputation or good name of another; a lessening or cheapening in the estimation of others; the act of depreciating another, from envy or malice; calumny..
Bespatter :: Bespatter (v. t.) To asperse with calumny or reproach.
Backbiter :: Backbiter (n.) One who backbites; a secret calumniator or detractor.
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